Underwater robot for collecting water samples

The invention discloses an underwater robot for collecting water samples. A main bin, a double air bin, a rotary injection type collector, a soil sample collector and a deep water motor are all installed on a support. A camera device, a control circuit board, a wireless emitter and a power supply are arranged in the main bin. One end of the main bin is provided with a hemispherical compression-resistant organic glass cover. Wireless control signals are transmitted into the signal receiving end of the wireless emitter. The signal output end of the wireless emitter and the signal output end of the camera device are both connected with the signal input end of the control circuit board. The control signal output end of the control circuit board is connected with the control signal input end of the rotary injection type collector, the control signal input end of the soil sample collector and the control signal input end of the deep water motor. The underwater robot can be remotely controlled through the wireless emitter; specifically, the deep water motor, the double air bin, the rotary injection type collector and the soil sample collector are controlled, and underwater water sampling and underwater soil sampling are conducted by conducting observation through the camera device.