The 35-year-old was on the substitutes’ bench during the Pittodrie club’s 1-0 defeat at home to Premiership champions Celtic on Sunday.
With Scott Brown in goal for Aberdeen, he prevented the Parkhead side adding to their single strike from his namesake by producing a handful of excellent saves in the second half.
However, it was the comments of ex-Celt Walker on Sky Sports that left Langfield furious.
He took to Twitter on Sunday evening to vent his fury and wrote: “This is worth the fine I’m going to get…’Andy Walker is a bell**d’.”
The Pittodrie club will almost certainly taken action and the SFA Compliance Department should certainly take a dim view of Langfield’s rant.