Binary gas storage type ocean wave energy utilization device

The invention relates to the technical field of wave energy utilization, and particularly discloses a binary gas storage type ocean wave energy utilization device which comprises a device body, a piston and a floating body. The device body is provided with a piston cavity, a low-pressure air inlet, a low-pressure air outlet, a high-pressure air inlet, a high-pressure air outlet and a first air storage chamber. The piston is arranged in the piston cavity in a sliding mode and divides the piston cavity into a first cavity body and a second cavity body. The floating body is floatably arranged on the sea surface and is connected with the piston; the low-pressure air inlet communicates with the exterior of the device body and the first cavity. The low-pressure air outlet is communicated with the first cavity and the first air storage chamber; and the high-pressure air inlet is communicated with the first air storage chamber and the second cavity. According to the binary gas storage type ocean wave energy utilizati