Vertical powder mixer

The utility model provides a vertical powder mixer, which belongs to the technical field of powder mixing and is provided with a mixing cylinder, a first rotating motor is arranged at the center of the top of the mixing cylinder, an output shaft of the first rotating motor penetrates through the top wall of the mixing cylinder and is fixedly connected with a mixing shaft, and a conveying pipe is fixedly mounted on the side wall of the mixing cylinder. A rotating shaft is arranged in the conveying pipe, a spiral piece is arranged on the periphery of the rotating shaft, a dispersing disc is fixedly installed at the end, close to the mixing shaft, of the rotating shaft and comprises a plurality of dispersing pieces, and the dispersing pieces are arranged in a bent mode; a plurality of groups of connecting shafts are distributed on the mixing shaft, the connecting shafts comprise inner connecting shafts and outer connecting shafts, every two adjacent groups of connecting shafts are arranged in opposite directions