Ultra fine powder mixing machine

The utility model provides an ultra fine powder mixing machine, which comprises a machine body. A stirrer is arranged in the machine body; the stirrer is connected with a motor outside the machine body; the machine body is provided with a vent hole and a guide plate. The utility model has the improvement that the machine body is provided with an air sucking device which comprises an air sucking hole arranged on the machine body and a filter which is connected with an orifice of a through hole. By an air sucking mechanism which is connected with a pipe body and the air sucking hole, through air currents for forced ventilation generated by the air sucking device, moisture in the material mixing process is sucked out in time, which ensures the effect of material mixing and improves product quality.