Size mixing and hole cleaning double-pump device for underground water monitoring well

The utility model discloses a slurry mixing and hole cleaning double-pump device for an underground water monitoring well, and relates to the technical field of underground water monitoring well construction. The slurry mixing and hole cleaning double-pump device for the underground water monitoring well comprises a drill hole, a precipitation pipe is inserted into the drill hole, a water filtering assembly is fixedly installed on the top of the precipitation pipe in a threaded mode, and a well pipe is fixedly installed on the top of the water filtering assembly in a threaded mode. Compared with a traditional single-pump process, the double-pump structure is adopted, a drill rod with a piston is omitted, the 850 pump and the 250 pump are directly connected to the well casing through the tee joint, the hole cleaning time is obviously shortened through the double-pump structure, sediments in a hole can be rapidly removed, the construction period is greatly shortened, the cost is reduced, and the water filtering