High-efficiency mechanical crushing device

The invention discloses a high-efficiency mechanical crushing device. The high-efficiency mechanical crushing device comprises a pedestal; one side of the upper part of the pedestal is provided with a support; the middle part of the support is provide with a housing; the housing is an cylindrical housing with an opening on the upper part; the bottom of the housing is provided with a lower polishing plate; the height of the middle part of the lower polishing plate is lower than that of the side periphery; a plurality of second crushing plates are arranged on the inner side periphery of the housing; one side of the upper part of the support is provided with a motor support; and one side of the motor support is provided with a motor. The high-efficiency mechanical breaking device can be used for crushing large granule particle materials into small granule particle materials and grinding of the small granule particle materials at the same time so as to obtain more fine small granule particle materials and improve material crushing quality of high-efficiency mechanical crushing devices.