Mine field water sampling device

The utility model relates to the technical field of water sampling devices, in particular to a mine field water sampling device which comprises a sampling box and a box cover, a collecting and releasing device is arranged in the sampling box and comprises a power unit and a take-up unit, a sampling device is arranged at the bottom of the sampling device, and the power unit is connected with the take-up unit. The sampling device comprises a sampling unit and a sealing unit. According to the gold mine on-site water sampling device capable of avoiding shaking, during sampling, the power unit drives the take-up unit to take up and release the sampling bottle, operation is more convenient and faster, time and labor are saved, water flow enters the sampling bottle through a water inlet hole, a floating plate floats upwards until a magnetic ring at the top of the floating plate makes contact with a magnet ring at the top of a top cover, and sampling is completed. The magnetic ring and the floating plate are in adsor