Automatic connection conveying furnace capable of improving sealing efficiency

The automatic connection conveying furnace capable of improving the sealing efficiency comprises a supporting table, a sealing guide block is arranged on the edge of the inner wall of a sealing door, a transverse sealing buckling block is arranged at the upper end of the sealing guide block, and transverse sealing buckling grooves and sealing guide rails are arranged on the edges of the two sides of an upper heating bin. The transverse closed buckling groove and the closed guide rail are connected with the transverse closed buckling block and the closed guide block in a buckled and sealed mode respectively, a material conveying belt is arranged at the lower end of the sealing door, and the shape of the lower end of the sealing door is matched with the shape of the surface of the material conveying belt. According to the automatic connection conveying furnace capable of improving the sealing efficiency, sealing doors are arranged on the two sides of an upper heating bin, the sealing doors and the upper heating