Stepped conical cyclone

The utility model relates to the technical field of cyclone separation, and discloses a stepped conical cyclone which comprises a cyclone body, a feed pipe, an overflow pipe and an underflow port, the cyclone body comprises a cylindrical barrel and a stepped cone, and the stepped cone is composed of at least two stages of cone bodies which are sequentially arranged from top to bottom; the upper end of the primary cone is fixedly connected with the lower end of the cylindrical barrel; an underflow opening is formed in the lower end of the last-stage cone body and is communicated with the last-stage cone body through a pipeline; the overflow pipe is fixedly connected to the middle of the upper end of the circular barrel, the upper end of the overflow pipe extends out of the cylindrical barrel, and the lower end of the overflow pipe extends into the cylindrical barrel; the rear end of the feeding pipe is fixed to the left end of the outer wall of the cylindrical barrel in a welded mode. Due to the change of the