Water level lifting device and method

The invention provides a water level lifting device and method, and relates to the technical field of resource environment, the water level lifting device comprises a first vertical pipe and a second vertical pipe, the lower ends of the first vertical pipe and the second vertical pipe are inserted below the water level in a sealed pressure-resistant tank body; the upper ends of the first vertical pipe and the second vertical pipe are connected with the first container; a first one-way valve is arranged at the upper end of the first vertical pipe, second sealing gas is arranged in the second vertical pipe, the first sealing gas reciprocates up and down in the first vertical pipe, and the second sealing gas reciprocates up and down in the second vertical pipe; and the first sealing gas and the second sealing gas alternately move to lift water from the second container to the first container, wherein the water is located at the upper parts of the first sealing gas and the second sealing gas. According to the inv