The invention discloses an air filtering core cleaning method. During working, a box door is opened, squeezing plates are squeezed towards both sides, the squeezing plates push pull rods, the pull rods push transverse plates, the transverse plates press first springs, an air filtering core is put between the squeezing plates, the squeezing plates are loosened, the squeezing plates clamp the air filtering core, a sweeping head is squeezed to lightly press the air filtering core, the box door is closed, a proper amount of water is added into a water inlet hole, a first motor is started to drivea first bevel gear to rotate, the first bevel gear rotates to drive a second bevel gear to rotate, the second bevel gear rotates to drive a rotating shaft to rotate, the rotating shaft rotates to drive a bottom plate to rotate, the bottom plate rotates to drive squeezing boxes to rotate, and the squeezing boxes rotate to drive a top plate to rotate around a rotating base. Through an air filteringcore cleaning device, the air filtering core can rotate, so that the problem that manual cleaning is not complete is solved, a cleaning dead angle caused by manual negligence is avoided, the cleaningquality is greatly improved, burden on working staff is reduced, and the quality of a product for secondary use is guaranteed.