The invention relates to a purification device, in particular to a novel purification device for rare earth powder. The invention aims at providing the novel purification device for the rare earth powder. The novel purification device, provided by the invention, for the rare earth powder comprises an S-shaped purification cylinder, a rotating device, a crushing heating device, a suction fan, electromagnet, and the like, wherein the crushing heating device is installed on the rotating device; the suction fan is positioned at the upper part in the S-shaped purification cylinder; the suction fanis connected with the upper part of the right inner side wall of the S-shaped purification cylinder in a way of bolted connection; a plurality of pieces of electromagnet are available and are positioned under the suction fan. According to the novel purification device for the rare earth powder, the S-shaped purification cylinder is combined with the rotating device, so that the rare earth powder can be stirred in a rotating way when being conveyed, and the uniformity of the rare earth powder is greatly improved; the novel purification device is good in rare earth powder purification effect andhigh in rare earth powder purification efficiency.