The utility model relates to the technical field of
water quality purification, and discloses a
constructed wetland water quality purification structure which comprises a side slope, a reinforcing layer, a filler layer, a planting soil layer, a planting pore plate and plants, the reinforcing layer is laid on the side slope, the filler layer is laid on the reinforcing layer, the side slope is reinforced through the reinforcing layer, and the planting pore plate is arranged on the planting soil layer. Then, a filler layer is arranged on the reinforcing layer and used for creating a microbial environment, a side slope is elevated, a planting soil layer and a planting hole plate are arranged and used for planting plants, a
water storage bin is arranged and used for collecting overflowing water, and water in the
water storage bin permeates into the filler layer again through a
water seepage opening in the
water storage bin and then is purified; when the
water flow is large, overflowing water enters the water storage bin from the water inlet, when the
water flow is small, under the action of the
water pressure difference, the water in the water storage bin permeates into the filler layer from the
water seepage opening, after the filler layer is filled with water, the water overflows, and it is ensured that plants have enough water to survive.