Soil impurity removal device

The utility model provides a soil impurity removal device which comprises a treatment box, the upper end of an inner cavity of the treatment box is fixedly connected with a filter plate, the lower end of the inner cavity of the treatment box is movably connected with a filter frame, and the left side of the upper end of the inner cavity of the treatment box is movably connected with a transmission rod through a bearing; the electric heating bar operates to generate heat to dry soil, the soil is effectively prevented from caking, meanwhile, a transmission rod drives the electric heating bar to rotate, the soil is in an active state and is evenly heated and dried, a second motor drives a half gear to rotate, the half gear drives a toothed plate to move towards one side, and the toothed plate drives a filter frame to move towards one side. Meanwhile, a spring can reset a filter frame, so that the filter frame shakes left and right, the filter frame intercepts impurities in the soil, the filtering and impurity re