Circulating irrigation and drainage device for irrigation and water conservancy

The utility model discloses a farmland water conservancy circulation irrigation and drainage device which comprises a base, an atmospheric precipitation tank, an ecological water tank, a manual telescopic rod, an irrigation and drainage pipe and a storage vessel, a first water pump is fixedly installed at the top of the base on one side of the ecological water tank, and the top of the first water pump and the top of the ecological water tank are installed in a butt joint mode through a water inlet pipe; a discharge pipe is arranged at the top of the atmospheric precipitation tank, and a storage vessel is placed at the top between the placing plates. The top of the first water pump and the top of the ecological water tank are installed in a butt joint mode through the water inlet pipe, a water source in an ecological water well near a field is utilized, a drainage pipe is arranged at the top of the atmospheric precipitation tank, atmospheric rainwater is contained, and the rainwater in the atmosphere is contai