Integrated device and method for groundwater environment monitoring well investigation

The invention discloses integrated device and method for groundwater environment monitoring well investigation. The integrated device comprises an external supporting part, a well wall measuring part, a well water sampling part, a water depth and connectivity measuring part, a well bottom sludge measuring part, a clamping mechanism and an in-well supporting mechanism. When an underground water environment monitoring well needs to be investigated, the well wall measuring part moves in place, the mechanism is connected, and when the mechanism moves in place, a middle shell rotates; a well wall state is known according to the moving position of a telescopic rod extending into the well, and the mechanism is connected, the well water sampling part is movably fixed, and a collection bottle collects different samples; the mechanism is separated, a water pumping pipe is installed, the water pumping pipe is moved in place and fixed; water is pumped out, the water depth is known, a water backfilling measuring mechanism