Soil pollutant migration simulation device

The utility model provides a soil pollutant migration simulation device which comprises a leaching tank, a water pumping structure and a water storage tank, the water pumping structure is arranged on one side of the leaching tank, the leaching tank is connected with the water pumping structure through a connecting hose, and the water storage tank is arranged on the end face of one side of the water pumping structure. One end of the connecting hose penetrates through the leaching box and is connected with a leaching plate installed in the leaching box, the lower end face of the leaching plate is evenly and fixedly communicated with a plurality of spraying heads, the lower end face of the leaching plate is provided with an air brake, and the air brake is located on the lower sides of the spraying heads. The spray head has the following beneficial effects that the phenomenon that the flow speed of water sprayed out of the spray head from the inside is too high, so that the soil is seriously impacted, the phenome