Turbine blade of sewage outlet power generation device

The utility model discloses a turbine blade of a sewage outlet power generation device, and relates to the technical field of turbine blades. The protective device comprises a protective assembly, the protective assembly comprises a protective cover, a fixed block connected to the top end of the outer surface of the protective cover, a rotating column connected to the top end of the outer surface of the fixed block, a first mounting block connected to the top end of the rotating column and four blades connected to the outer ring of the first mounting block; through the arrangement of the protection assembly, particularly the fixing block connected to the upper end of the protection cover and the rotating column connected to the upper end of the fixing block, the blade starts to rotate around the rotating column due to the impact of water flow, and glass products and hard sundries flowing down from the upper end can be crushed during rotation; the turbine blade protection device is high in safety performance a