Powder screening device

The utility model discloses a powder screening device. The powder screening device comprises a screen mesh used for screening powder and a screen mesh rack used for installing the screen mesh. A power mechanism which is used for driving the screen mesh to swing from the left to the right and a swinging assembly are arranged on the screen mesh rack. The powder screening device has following beneficial effects: the power mechanism provides power to drive the screen mesh rack to swing from the left to the right and further the screen mesh performs left-right swinging motion; powder blanked on the screen mesh and less than meshes blanks on a material-loading vehicle so that automatic powder screening operation is achieved instead of manual operation; and compared with a conventional multi-layer screen mesh device, the powder screening device is high in efficiency, simple in structure, good in using effect and low in cost and is practical and is capable of avoiding damage to human health.