Mixing feeder for proportioning blast furnace bituminous coal

The mixing feeder comprises a base, a feeding pipeline and an air draft pipeline, the upper side of a hydraulic cylinder is connected with a movable support through a piston rod, a feeding channel isfixed to the left side of the movable support through a first bolt, an electric stirring column is rotatably connected into the mixing box, and the electric stirring column is connected with the feeding channel through a second bolt. An electric discharging valve penetrates through the bottom of the mixing box, the feeding pipeline and the air draft pipeline both penetrate through the top of the top cover, and the air draft pipeline is arranged on the right side of the feeding pipeline. According to the mixing feeder for proportioning the blast furnace bituminous coal, after the feeding pipeline is connected with external feeding equipment and all the raw materials are introduced into the mixing box according to the proportioning requirement, different raw materials can be fully mixed under the rotation action of