Rainwater treatment system for road green belt

The utility model discloses a rainwater treatment system for a road green belt. The rainwater treatment system comprises a carriageway pavement, a sidewalk pavement and a green belt, a gutter apron area and a rubble area are arranged between the traffic lane pavement and the green belt, and the gutter apron area and the rubble area are spaced through curbstones; a lateral water inlet grate is arranged on the curbstone; a planting soil layer, ecological porous fiber cotton and a tamped plain soil layer are sequentially arranged below the surface green land of the green belt in the height direction; one side of the macadam area is connected with the lateral water inlet grate, and part of the macadam area is connected with the ecological porous fiber cotton up and down; the green belt is separated from the pavement of the sidewalk through boundary stones; the sidewalk pavement is sequentially provided with a water permeable brick layer, a medium-coarse sand layer, a water permeable cement concrete layer, a grave