Coal ash proportioning device

The utility model relates to the technical field of cement processing, in particular to a coal ash proportioning device. According to the technical scheme, the device comprises a batching box, a plugging mechanism, two hoppers and a control box, a feeding port is formed in the middle of the top of the batching box, two metering scales are symmetrically installed at the two ends of the batching box, and four polished rods are installed on the portions, located on the peripheries of the two metering scales, of the top of the batching box in a rectangular array mode; four fixing blocks are symmetrically mounted on the front side and the rear side of each hopper in a pairwise mode, the four fixing blocks are slidably connected with the four polished rods correspondingly, discharging nozzles are formed in the lower ends of the opposite sides of the two hoppers correspondingly, plugging mechanisms are arranged on the portions, located on the discharging nozzles, of the two hoppers correspondingly, a stirring shaft