The invention aims to solve the problem that air treatment on rural land is difficult to perform at present, and discloses an air pollution treatment device for agricultural land. The air pollution treatment device comprises a push rod, a rotating disk, a first motor, a mounting rod, water injection holes, water tanks, water guiding pipes, a connecting plate, second motors, end covers, material passing pipes, discharging pipes, spiral blades, first rotating shafts, positioning plates, discharging plates, positioning rods, sliding pipes, spiral springs, guiding frames, a mounting box, supporting legs, universal wheels, bulge blocks, a handle, material passing plates and a second rotating shaft. By the aid of the air pollution treatment device, loosened soil form soil blocks reasonably, thesoil blocks are spread on the surface of the land, then dust on the land is covered, and flying dust is reduced; and the air pollution treatment device is reasonable in design, convenient to operate,safe and reliable.