Heating furnace body sealing assembly

The utility model discloses a heating furnace body sealing assembly which comprises an inner furnace body, two nozzles which are arranged in a bilateral symmetry mode are arranged on the top of the inner furnace body in a penetrating mode, the outer wall of each nozzle and the side wall of the inner furnace body are welded, fixed and sealed, and the heating furnace body sealing assembly further comprises an air cylinder and two rotating arms which are arranged in a bilateral symmetry mode. The air cylinder is used for being fixed to the outer wall of an outer furnace body in the heating furnace, the middles of the two rotating arms are rotationally connected with the outer wall of the top of an inner furnace body, and plugs used for abutting against the outer ends of nozzles on the corresponding sides to plug the nozzles are fixed to the outer ends of the two rotating arms. A piston rod of the air cylinder movably penetrates through the side wall of an outer furnace body in the heating furnace and then is rot