Powder mixing device for laboratory

The utility model provides a laboratory powder mixing device which comprises a driving device and a mixing box body, the output end of the driving device is connected with the mixing box body through a transmission shaft, the driving device drives the mixing box body to do 360-degree reciprocating rotation, the two sides of the top of the mixing box body are fixedly connected with a plurality of vertical connecting rods, a box cover is correspondingly arranged above the mixing box body, and the vertical connecting rods are fixedly connected with the box cover. The two sides of the box cover are correspondingly and fixedly connected with the upper portions of the connecting rods through butterfly nuts respectively, the mixing box body is of a hollow structure, a plurality of fixing supports are installed in the mixing box body, and the fixing supports are used for fixing sealing bottles, and the fixing supports, the mixing box body and the box cover can achieve mixing of a plurality of powder samples at the sa