Farmland irrigation prevents stifled takeover

The utility model discloses a farmland irrigation prevents stifled takeover, including first coupling and second coupling, the outside cover of first coupling is equipped with the sleeve pipe, the oneend that the inlet tube was kept away from to first coupling is provided with the annular table rank, threaded connection has two clamping rings on the annular table rank, be provided with first sealing washer between two clamping rings, the periphery wall protrusion of first sealing washer is just hugged closely with the sheathed tube inside wall in the clamping ring, the one end that the outletpipe was kept away from to the second coupling is inlayed and is equipped with the filter screen fill, the one end cover that the outlet pipe was kept away from to the second coupling is equipped with the second sealing washer, be provided with annular blank pressing on the second sealing washer, the second coupling is kept away from and is provided with annular boss on the periphery wall of outlet pipe one end, the sleev