Hot pressing die for large-diameter thin-wall three-way pipe

The utility model relates to the technical field of hot-press forming, and discloses a hot-press die for a large-caliber thin-wall three-way pipe, a fan is mounted on the lower surface of a top plate of a cleaning box, mounting grooves are formed in a hot-press die body and a bottom plate of the cleaning box, and first motors are mounted on the inner walls of the left sides of the mounting grooves; and a screw rod is coaxially mounted on a rotor of the first motor, a moving block is rotationally connected to the surface of the screw rod, and a mounting seat is mounted on the upper surface of the moving block and located above the hot-pressing mold body. An additionally-arranged first motor can finally drive a mounting base to move, so that the mounting base moves into a cleaning box, meanwhile, an additionally-arranged fan can clean dust on the surface of the mounting base, the surface of the mounting base cannot adsorb dust, no dust is pressed into the surface of the three-way pipe when hot pressing is condu