The invention relates to a heating feeding box comprising a material box, a buffering plate, a screen mesh, an impurity removal door and a discharging pipe. The buffering plate is obliquely arranged in the middle of the interior of the material box and located below a discharging port of an ore pulp pipeline, the screen mesh is horizontally arranged in the middle of the interior of the material box, and the screen mesh is connected with the buffering plate. The impurity removal door is arranged on the side, away from the buffering plate, of the screen mesh and on the side wall of the materialbox, and the discharging pipe is arranged below the impurity removal door and communicates with the bottom of the interior of the material box. A heater is arranged at the top of the inner side of thematerial box, and the heater is fixedly connected with the top of the inner side of the material box. Compared with the prior art, the heater can heat the interior of the material box to enable flowing of ore pulp to be rapider, and the feeding efficiency is improved.