The invention discloses a gutter inlet initial rainwater accurate diversion and
treatment system. The
system comprises a gutter inlet initial rainwater accurate diversion device and a
slag removal filtering device, wherein a
dry season cabin and a rainy season cabin are arranged in a box body of the gutter inlet initial rainwater accurate diversion device; a first drainage
pipe and a second drainage
pipe are arranged at the bottoms of the
dry season cabin and the rainy season cabin respectively; and the first drainage
pipe and the second drainage pipe are provided with a normally-closed firstvalve and a normally-closed second valve respectively. The
slag removal filtering device comprises a first treatment chamber and a second treatment chamber, a pre-
sedimentation tank and a filtering tank are arranged in the first treatment chamber, the second treatment chamber comprises a
sediment sedimentation area and a centrifugal filtering area, and the first drainage pipe and the second drainage pipe communicate with a water inlet of the
slag removal filtering device. According to the gutter inlet initial rainwater accurate diversion and
treatment system, rainwater can be accurately diverted, rainwater which is small in
pollution and meets the
emission standard can be directly discharged, rainwater which is serious in
pollution can enter the slag removal filtering device through the valves in the gutter inlet initial rainwater accurate diversion device, and
solid impurities in
sewage are effectively removed.