Adjustable floating pipe type hydroelectric generator

The invention discloses an adjustable floating pipe type hydroelectric generator, and particularly relates to the field of generators, the adjustable floating pipe type hydroelectric generator comprises a floating pipe body, a support, a generator body and an impeller, the support is installed in one end of the floating pipe body, the generator body is supported on the support, and the impeller is installed at the output end of the generator body; a water collecting tank is installed at the other end of the floating pipe body, flow guide blocks are symmetrically installed in the water collecting tank, a water collecting opening is formed between the two flow guide blocks, and a water collecting mechanism is installed in each flow guide block in a matched mode. The water collecting range can be adjusted, the size of the water collecting opening is reduced while the water collecting range is expanded, so that the water flow speed is increased, the water flow speed is further increased under the cooperation of t