Pneumatic type magnetic shielding opening and closing door

The utility model relates to a pneumatic type magnetic shielding opening and closing door, which is matched with a wall body of a shielding machine room and comprises a door body and a door frame matched with the door body, the door frame comprises a stainless steel door pocket; the door body comprises an inner keel and an outer keel which are connected internally and externally, the inner keel is one circle smaller than the outer keel, an air bag ring is arranged on the peripheral side of the inner keel, a copper sheet ring is arranged on the outer side of the air bag ring, one side of the copper sheet ring is fixed to the inner keel, and the other side of the copper sheet ring is fixed to the outer keel. The other side of the inner keel can be inflated through the air bag ring to have a first state of pushing the inner keel to be tightly attached to the stainless steel door pocket and a second state of releasing the inner keel from being tightly attached to the stainless steel door pocket through deflation