Bidirectional shock wave resistant steel structure protective airtight door

The utility model discloses a bidirectional shock wave resistant steel structure protective air-tight door, which relates to the technical field of air-tight doors, and comprises a wall body, an entrance is arranged on the wall body, a door frame is arranged at the entrance, and the door frame comprises a first frame plate and a second frame plate. A first connecting plate and a second connecting plate are installed on the inner wall of the first frame plate, a third connecting plate and a fourth connecting plate are installed on the inner wall of the second frame plate, the end of the first connecting plate is attached to the end of the third connecting plate, and the end of the second connecting plate is attached to the end of the fourth connecting plate. By arranging the door frame structure, the stability of the door body is higher, the strength of the door body is improved, by installing the supporting assemblies on the front surface and the rear surface of the door body, the installation speed of the do