The utility model discloses a storage landfill leachate's device, specifically, the device includes the water tank, the empty subassembly of deodorization and simulation, mud subassembly and inside stirring subassembly are arranged to the bottom, wherein, the water tank is equipped with the inlet tube, and the bottom of water tank is for leaking hopper -shaped, the empty subassembly of deodorization and simulation includes admission line, admission valve, the pipeline of giving vent to anger, deodorization fan, vacuum meter and controlgear, the bottom is arranged the mud subassembly and is included discharge mud pipe, mud valve, anti - flushing pipe, backwash valve and slush pump, inside stirring subassembly includes outlet pipe, an outlet water pump and n time spray layer, wherein, and 1<= n <= 10. The utility model discloses can effectually prevent landfill leachate to the pollution of groundwater, leachate's stirring and desilting work are convenient to reduce the area and the operating power consumption of storage facility by a wide margin.