Landfill air collection pipeline four-way water-discharging device

The utility model relates to a landfill air collection pipeline four-way water-discharging device. An exhausting pipeline is connected with a water-collection vertical well through a four-way adapter, a water-discharging pipe and a high-pressure air inlet pipe are placed inside the water-collection vertical well, and the lower end port of the high-pressure air inlet pipe is bent to form a U-shaped air outlet and is inserted into the lower end port of the water-discharging pipe. The landfill air-collection pipeline four-way water-discharging device has the advantages of being simple in construction process, mature in construction process, and strong in environment adaptability, bringing convenience to filter liquid discharging, being low in maintenance cost, reducing pipeline ponding, shortening machine-halt time, and the like. The landfill air collection pipeline four-way water-discharging device is suitable for being used in large-range landfill areas, the whole device can achieve automatic water discharging