Underground water detection device for chemical industry park

The utility model discloses an underground water detection device for a chemical industry park, relates to the technical field of underground water detection, and aims to solve the problem that the existing underground water detection device is difficult to determine the height of the water surface in a monitoring well, so that a detector is influenced to judge whether a detection probe extends into the water surface or not. The device comprises an external connection pipe, the bottom end of the external connection pipe is connected with a detection probe, the external connection pipe is connected with a balancing weight and a floating piece in a sliding mode, and one end, connected with the detection probe, of the external connection pipe is provided with a clamping edge used for clamping the balancing weight. The balancing weight is provided with an insulating sleeve used for extending into the floating piece, metal pieces are arranged in the insulating sleeve, the two metal pieces are electrically connecte