The invention relates to an ultrahigh-temperature charging machine. The charging machine comprises a frame installed on a ground plate, a smelter arranged at one side of the frame, a motor arranged at the bottom of the frame, a connecting arm in transmission connection with the motor and a conveying pipe, wherein an output port of the conveying pipe is inserted into an inlet of the smelter; one end of a movable rod is hinged to the side wall of the frame, and the other end of the movable rod is hinged to a static rod fixedly connected to the connecting arm; a cooling water pipe cools the connecting arm and circulates through an exchange pipe; a push shovel is arranged at the end, stretching into the inlet of the smelter, of the connecting arm; inverted-U-shaped water channels are arranged in the connecting arm, a bending vertex of each inverted-U-shaped water channel is close to the push shovel, and the two ends of the bottom of each water channel penetrate through the connecting arm and are connected with the cooling water pipe. Through the inverted-U-shaped water channels arranged in the connecting arm, the push shovel can be cooled more safely, and cooling water makes direct contact with the connecting arm and the push shovel, so that cooling is more efficient; a water volume adjustment device can control the water volume in the water channels, and the charging machine is simple in structure and low in cost.