NOVELTY - The flat-type solar photo-catalytic rain-water collecting device comprises a raw water tank (1), a water tank (2), and a reactor (3). The reactor is flat in shape, and is set in a reaction tank (4). A bottom of the reactor is provided with a base (5). One side reactor is provided with a water inlet. Other side of the reactor is provided with a water outlet. One side of the reaction tank is provided with a transparent panel. A bottom of the base is provided with a hook hole and a blocking point, and is provided with a baffle plate composed of a baffled channel.    USE - The flat-type solar photo-catalytic rain-water collecting device is useful for purifying rain water to produce drinking water.    ADVANTAGE - The device has simple structure, and is economical, simple and convenient to maintain and use.    DETAILED DESCRIPTION - The flat-type solar photo-catalytic rain-water collecting device comprises a raw water tank (1), a water tank (2), and a reactor (3). The reactor is flat in shape, and is set in a reaction tank (4). A bottom of the reactor is provided with a base (5). One side reactor is provided with a water inlet. Other side of the reactor is provided with a water outlet. One side of the reaction tank is provided with a transparent panel. A bottom of the base is provided with a hook hole and a blocking point, and is provided with a baffle plate composed of a baffled channel. The baffled channel is provided with titanium dioxide/soil engineering cloth supported photo-catalyst. An upper part of the baffled channel is connected with atmosphere and is provided with an air guide groove. The raw water tank is connected with the water inlet. The water tank is connected with the water outlet. The base comprises a triangular bracket base, a rotating cylinder and a rotating shaft. The triangular bracket base is provided with a drum in a middle part of the rotating cylinder. The rotating cylinder is positioned on the rotating shaft. The top of the rotating shaft is provided with an angle steel strip. The angle steel strip is connected with the blocking point. The rotating shaft is provided with a transverse rack. An upper part of the transverse rack is provided with a reinforced hook. The reinforced hook is connected with the hook hole. The bottom of the reaction tank has grid-shaped structure, and is provided with a gap. The raw water tank is provided with a control valve connected with an air outlet pipe and the water inlet. The water inlet is provided with a flow meter. The transparent panel is acrylic plate.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic view of a flat-type solar photo-catalytic rain-water collecting device.    Raw water tank (1)    Water tank (2)    Reactor (3)    Reaction tank (4)    Base. (5)