An integrated processing device of a rain fall effluent is provided to classify rapidly floatability and particulate materials in the rain fall effluent with the centrifugal force of the water current by forming powerful spiral flow while the rain fall effluent is flowed into the inside of device, to block conveniently the floatability and particulate materials to be flowed out into a rainwater pipeline or river, and to classify easily particle solid materials by precipitating the materials while the rain fall effluent flowed into the device circles round and upturns. The integrated processing device(A) of the rain fall effluent comprises a main body(10) and a vortex tub(20). The main body is made of cylinder and has a cover(11) at the upper end of the main body and an overflow tank(12) at the exterior upper side of the main body. A overflow pipe(13) at the lower part of the overflow tank has a cut off wing(14) at the inner round of the lower side height of the overflow pipe, an inclined plate(15) including a through-hole(15a) and a projection groove(15b) at the inner side of the middle part, a floor inclined plate(16) having through-holes(16a) at the inner side of lower part, and a settling tank(17) between the inclined plate and the floor inclined plate. A vortex tub is made of cylinder and positioned at the inner side of the main body and has a screen(21) around the upper part, an inlet tube(22) at the exterior side of the middle part, a baffle(23) at the interior side of the lower part, and a tubular wing(24) at the exterior round of the lower part.
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