Mine air door sealing structure

The utility model relates to the technical field of mine ventilation, in particular to a mine air door sealing structure which comprises a mine body and a sealing component, a second built-in groove is reserved in the top of the mine body, first built-in grooves are reserved in the two sides of the mine body, and the first built-in grooves are filled with first concrete reinforcing layers. The second concrete reinforcing layer and the two first concrete reinforcing layers are arranged, the stability of the mine body is enhanced, the influence on the reinforcing frame is avoided, meanwhile, the multiple first reinforcing ribs, the multiple second reinforcing ribs and the multiple supporting blocks are arranged in a staggered mode, and therefore the stability of the mine body is improved. The reinforcing frame, the first air door body and the second air door body are well protected against extrusion, the sealing performance of the mine air door is improved, an L-shaped plate on the first air door body and a sea