Combined type wearable impeller

The invention provides a combined type wearable impeller. The combined type wearable impeller comprises an inner sleeve, and an impeller body which sleeves the inner sleeve; the inner sleeve comprises a neck part, two connecting parts which axially extend from the upper and lower end surfaces of the neck part along the neck part, and a plurality of limiting parts which are connected to the outer side surface of each connecting part; the impeller body comprises a impeller body pat, and an external connecting part connected to the top end of the impeller body part; a downward through hole is formed in the external connecting part; two clamping blocks are convexly arranged on the wall of the through hole; the side surface of each clamping block, facing another clamping block is a mounting surface; arc-shaped grooves are respectively formed in the upper end and the lower end of each mounting surface; dovetail grooves are formed in the bottom walls of the arc-shaped grooves; each connecting part is clamped between the arc-shaped grooves of the oppositely-arranged two clamping blocks; the limiting parts on the inner sleeve are clamped into the dovetail grooves. According to the combined type wearable impeller, the inner sleeve is independently processed, and the impeller body is processed by embedding and casting, so that the processing processes can be simplified, the difficulty at the processing of the impeller can be reduced, and as a result, the processing efficiency is increased, and the production cost is saved.