Screen type environment-friendly aquaculture circulating system

The invention discloses a screen type environment-friendly aquaculture circulating system. The screen type environment-friendly aquaculture circulating system comprises a culture pond main body, wherein a partition screen and a bottom-discharge reverse dirt suction port are separately mounted at the middle part and bottom of the culture pond main body, the culture pond main body is divided into anupper-layer culture area and a bottom sediment area by the partition screen, the bottom-discharge reverse dirt suction port communicates with a pump well through a multiway interface, a water outletof the pump well communicates with a solid-liquid separation tank, and the solid-liquid separation tank communicates with a constructed wetland; and a plurality of physical water treatment devices anda plurality of biochemical water treatment devices are mounted inside a circulating water treatment device, and water flowing out from a middle-layer water outlet pipe arranged at the middle part ofthe culture pond main body a