Detachable soil screening and separating equipment

The invention relates to the technical field of soil screening equipment, in particular to detachable soil screening and separating equipment which comprises a box body and a box cover hinged to the upper end of the box body, a self-cleaning screen drum is obliquely arranged in the box body, and the two ends of the self-cleaning screen drum are fixed to the inner wall of the box body correspondingly. A first discharging opening is formed in the side wall, opposite to the discharging side of the self-cleaning screen drum, of the box body, two sets of supporting plates are arranged below the self-cleaning screen drum and fixed to the front side wall and the rear side wall of an inner cavity of the box body respectively, a screen plate is erected on the tops of the supporting plates, and an opening and closing door is arranged on the side wall, opposite to the screen plate, of the box body; a soil block crushing mechanism and a sieve plate cleaning mechanism are arranged above the sieve plate and are used for ex