The invention discloses an air purification door which comprises a door frame, a door body connected into the door frame in a rotatable manner, and air filter assemblies and a water filter which are mounted in the door body, wherein the air filter assemblies comprise air outlet plates, air inlet plates, flow guide blocks and spraying pipes; flow guide walls are formed on the outer sides of the flow guide blocks; convergence plates are formed at the lower parts of the flow guide blocks; the convergence plates are fixedly connected with water outlet joints a; the spraying pipes are shaped like circular pipes with two closed ends; water spraying openings are formed in positions, which are in contact with the flow guide walls, at the upper ends of the spraying pipes; the lower end of one side of each spraying pipe is fixedly connected with a water inlet joint a; and under a condition of no wind, negative pressure is generated near to the surface of a water membrane, and outdoor air can directly flow into an air purification window and flow into a room after being filtered. As water from all directions can flow in the pipes or along the wall surface under any circumstance, no noise can be generated by a fan or vertically downward dropping of water.