The Dons keeper is nicknamed 'Langers' by his team-mates but his critics have taken to calling the 33-year-old 'Clangers' following a series of high-profile mistakes.
However, Irishman Hayes insists the former Scotland B international is among the best keepers he has ever worked with.
Steven Thompson's goal in the 1-1 draw with Aberdeen was the first goal Langfield had conceded in 638 minutes of action since Motherwell's opener in the Reds' 3-1 win back in August - although the keeper was sent off in the subsequent 2-0 defeat to Celtic after giving away a first-half penalty.
But Hayes claims his team-mate should be given much more credit than he currently receives.
"Jamie has made a couple of wonder saves this season," said the Irishman. "He made one at Falkirk which springs to mind. It was 0-0 at the time but I don't know how he kept it out.
"I see him every day in training and I think he is a great keeper.
"But there are players at every club that certain fans don't like and don't get on with and he seems to be one of them.
"Jamie does his best to promote Aberdeen when he's out in the community and I don't understand why he gets stick.
"Unfortunately his name rhymes and gets it a bit for that.
"But I remember the Dundee United game last year - I've never seen a performance from a keeper like the one he made that day.
"He has kept us in a lot of games, but unfortunately if he does make a mistake, people are quick to highlight it.
"I've seen other keepers make howlers game after game but Jamie is one of the most consistent keepers I have come across. The stick he gets is unfair.
"He's a top pro and if he does make a mistake, he just gets on with it and works harder."
The Dons now travel to Dingwall to face Ross County on the back of a six-match unbeaten run and positioned comfortably in the Scottish Premiership in fourth.
And Hayes puts the air of confidence swirling round Pittodrie down to boss Derek McInnes.
"The manager has created an atmosphere at the club that even if things aren't going too well, everyone sticks together. It's not just the 11 on the pitch or the squad in the dressing room, it's the whole club.
"He has set high standards and has got everyone to go along with that."