The utility model belongs to the technical field of
refractory material crushing, and discloses a
refractory material crushing device, which comprises a
crusher, an
impeller and a motor, the interior of the
crusher is fixedly connected with a shell, the interior of the
impeller is provided with a cavity, the interior of the
impeller is rotatably connected with a
cutting gear, and the top end of the cavity of the impeller is fixedly connected with a material throwing disc. The top end of the material throwing disc is fixedly connected with a base, the rear side of the base is fixedly connected with a
grinding head, the
grinding head is arranged on the outer side of the
cutting gear, a flow channel is formed in the outer side of the impeller, and materials are thrown out from the outer side of the flow channel on the outer side of the impeller under the action of
centrifugal force and rotate towards the interior, arranged on the outer side of the impeller, of the shell. The problems that when
refractory material broken stones are crushed, the crushing quality of a refractory material is poor, the refractory material cannot be uniformly crushed, the crushed finished product is not attractive in
grain shape, and a
grinding head is easily damaged when a wear-resistant material with high
hardness is ground for a long time are solved.