Impurity removing device and conveying device

The utility model discloses an impurity removing device and a conveying device, and the impurity removing device comprises a rotating mechanism which can rotate around the rotating mechanism and is provided with one or more material taking pieces in the circumferential direction of the rotating plane, and the material taking pieces are used for picking up impurities in powder; and the sundry recycling mechanism and the rotating mechanism are arranged in a spaced mode, and the sundry recycling mechanism is located on the path where the sundries picked up by the material taking part rotate along with the sundry recycling mechanism so as to receive the sundries falling from the material taking part. The conveying device comprises a conveying belt used for conveying powder; according to the impurity removing device, the rotating plane of the material taking part is intersected with the conveying direction of the conveying belt. The dust removal device is ingenious in structure, can efficiently remove soil enginee