Fan impeller of axial flow fan

The utility model relates to the technical field of ventilators, and discloses a fan impeller of an axial-flow ventilator, the fan impeller comprises a rotating shaft, a fixing assembly and a plurality of impeller bodies, the ends, close to the rotating shaft, of the impeller bodies are fixedly connected with mounting blocks, and multiple rows of triangular clamping blocks are mounted on the sides, close to the rotating shaft, of the mounting blocks; clamping grooves which have the same number as the impeller bodies and are used for clamping the mounting blocks are formed in the outer side wall of the rotating shaft at equal intervals, and a plurality of rows of triangular clamping grooves matched with the triangular clamping blocks are formed in the inner walls of the clamping grooves; the fan impeller of the ventilator is convenient to disassemble or assemble on the rotating shaft, so that the effect of facilitating replacement and maintenance is achieved, the mass of the impeller body is further reduced th