Guide pipe structure with streamline inner wall and propeller applying guide pipe structure

The utility model relates to a conduit structure with streamline inner wall and a thruster structure using the same, which comprises a conduit, a first propeller, a second propeller and a rotating shaft, the first propeller and the second propeller are both rotatably mounted on the inner wall of the conduit, and the length direction of the rotating shaft is the same as that of the conduit. The first propeller is fixedly arranged at the front end of the rotating shaft in a sleeving manner, and the second propeller is fixedly arranged at the rear end of the rotating shaft in a sleeving manner; a first arc surface is arranged on the inner wall of the first propeller, a second arc surface is arranged on the inner wall of the second propeller, and the first arc surface and the second arc surface continuously contract from front to back. Under the condition that the power of the motor is not changed, the hydrodynamic performance is improved, and the problem that a traditional propelling machine needs to consume lar