The invention relates to a crusher, in particular to a rare earth ore crusher, and aims at achieving the technical purpose of providing the rare earth ore crusher through which time and labor are saved, the labor intensity is low, manual crushing is not needed, and damage due to rubble bursting out is not likely to happen. To achieve the above technical purpose, the rare earth ore crusher is provided and comprises a frame and the like. A transverse plate is arranged at the upper portion of the left side face in the frame, a material barrel is arranged on the right side of the top of the transverse plate, a pushing device is arranged on the left side of the top of the transverse plate and makes contact with the material barrel, and a crushing device is arranged on the outer right side faceof the material barrel. Through a screening device, ores different in size after crushing can be screened; and through a dust removing device, water can be sprayed out to remove dust generated in theore screening process, the dust is prevented from influencing the surrounding environment, and the effects that time and labor are saved, the labor intensity is low, manual crushing is not needed, anddamage due to rubble bursting out is not likely to happen are achieved.