Surface flow adsorption purification type constructed wetland structure

The invention discloses a surface flow adsorption purification type constructed wetland structure, relates to the technical field of sewage purification, and aims to solve the problems that an existing surface flow adsorption purification type constructed wetland structure is insufficient in sewage purification, cannot guarantee cyclic utilization of water supply, and is relatively high in construction cost, low in purification efficiency and not ideal in use effect. According to the scheme, the device comprises a reservoir, a water retaining wall is fixedly arranged in the reservoir, water leakage holes are formed in the water retaining wall, a ceramic block layer is arranged on the inner wall of the bottom of the reservoir, an activated carbon layer is arranged on the top of the ceramic block layer, a stone layer is arranged on the top of the activated carbon layer, and a soil layer is arranged on the top of the stone layer. And a sewage inlet pipe and a drainage pipe are arranged on the reservoir. The syst