The invention discloses a portal type device used for cleaning a filter screen. The portal type device used for cleaning the filter screen comprises a pulley, a water tank, an inflating pump and a pressure reducing valve; the water tank is fixed above the pulley; a portal type lifting handle is arranged at the center position of the front of the water tank; a spray head box is connected to one side of the water tank; a wire winding clamp is fixed to the other side of the water tank; a spray head clamping groove is fixed above the wire winding clamp; a protective cover is arranged on the top ofthe water tank; a push rod is wrapped in the protective cover; the pressure reducing valve is arranged at the top edge position of the water tank; the inflating pump is arranged in the water tank; apressure resistant hose is connected in the water tank; the top of the pressure resistant hose is connected with a pressing handle; and the upper portion of the pressing handle is sleeved with a detachable spray head. The portal type device used for cleaning the filter screen has the beneficial effects that the device can be carried in various overhauling vehicles, power supplying is not needed, washing is performed on filter screens of various types of devices, an air conditioner outdoor unit and the like, and besides, the portal type device used for cleaning the filter screen further has thebeneficial effects of being reasonable in design of the water tank capacity, achieving the pressurizing water spraying washing principle and the like.