Vertical crusher

The utility model provides a vertical crusher which comprises a crusher body, a rotating shaft is vertically arranged in the crusher body, and an impact plate is arranged on the inner wall of the crusher; a plurality of rotor discs are horizontally arranged on the rotating shaft, and a plurality of hammer heads are arranged on the outer edges of the rotor discs; the rotor disc comprises an upper-layer rotor disc, a middle-layer rotor disc and a lower-layer rotor disc, the diameter of the upper-layer rotor disc is smaller than that of the middle-layer rotor disc, and the diameter of the middle-layer rotor disc is smaller than that of the lower-layer rotor disc. According to the utility model, the rotor discs are arranged in the crusher body in a layered manner, the rotor discs with different diameters are arranged from top to bottom, and the hammerheads on the rotor discs in different layers are arranged in different sizes and numbers, so that the crushing cavity of the crusher body is arranged in a layered ma