Water body sampling tool

The utility model discloses a water body sampling tool which comprises a mounting frame, the top of the mounting frame is fixedly connected with a fixing frame, the fixing frame is connected with a sampling barrel through a lifting mechanism, a plurality of partition plates are arranged in the sampling barrel, the inside of the sampling barrel is divided into a control cavity and a plurality of sampling cavities from top to bottom by the partition plates, and the sampling cavities are communicated with the control cavity. A liquid inlet is formed in the inner side wall of the sampling cavity, a filter screen is fixedly connected to the inner side wall of the liquid inlet, and a closing mechanism is arranged at the liquid inlet. The motor, the winding roller and the connecting rope are matched for use, the sampling barrel is adjusted to enter different depth positions of a water body, the electric push rod, the connecting plate, the connecting rod and the baffles are matched for use, the baffles are opened whe