Filter for spray painting equipment

The utility model discloses a filter for spray painting equipment. The spray painting equipment comprises an oil storage tank and a spray gun; the filter comprises an oil inlet pipe joint, an oil outlet pipe joint and a filter screen, wherein the oil inlet pipe joint and the oil outlet pipe joint are connected in a mutually detachable manner; the filter screen is arranged between the oil inlet pipe joint and the oil outlet pipe joint; and the oil inlet pipe joint and the oil outlet pipe joint are respectively connected with the oil storage tank and the spray gun in a detachable manner. When mounted on the spray painting equipment, the filter with simple structure can effectively avoid the damage of a two-way valve as a result of sundries mixed in printing ink entering the spray gun to block a two-way valve, thereby saving the maintenance cost and ensuring the normal production; meanwhile, the oil inlet pipe joint and the oil outlet pipe joint, the oil inlet pipe joint and the oil storage tank as well as the o