Vegetable water culture circulating system

The utility model discloses a vegetable water culture circulating system which comprises a vegetable water culture frame water pipe, one end of the vegetable water pipe is connected with a water pumpA, a water outlet pipe of the water pump A is communicated with a first water pipe, the first water pipe is L-shaped, and a valve A is installed on the first water pipe. One end of the first water pipe is communicated with a second water pipe and a third water pipe through a first three-way connector, a valve B is installed on the second water pipe, a valve C is installed on the third water pipe,and the third water pipe is communicated with the filter box; the vegetable hydroponic frame is reasonable in design, the water pipe of the vegetable hydroponic frame is connected with the water pumpA, the corresponding valve is adjusted, water in the water pipe of the vegetable hydroponic frame is replaced through the water pump A, the water is filtered through the filtering box, residual impurities in the water are filte