The utility model discloses a multi-stage crushing
powder vibrating mill which comprises a box body, one side of the top end of the box body is fixedly connected with a feeding hopper, the inner wall of the box body is sequentially and fixedly connected with a plurality of filter plates from top to bottom, and a
grinding unit is arranged above the filter plates. Through cooperation of the box body, the feeding hopper, the filter plate and the material
grinding unit, materials can fall downwards through the filter plate, filter holes of the filter plate in the box body are continuously reduced from top to bottom, multi-stage step-by-step crushing of the materials is facilitated, when the
grinding roller passes through the materials clamped by the filter holes in the period, the acting force of the lower portion of the outer wall of the grinding roller close to one side of the materials is greatly increased, and at the moment, a compression spring is compressed and deformed; the sleeve block, the round rod, the
square rod and the grinding roller move upwards, and the grinding roller can
grind above the clamped material instead of being blocked and cannot move forwards, so that a motor for driving the grinding roller to rotate cannot be in a high-load state, and a
machine body can run stably for a long time.