The invention discloses a fast and convenient dismounting impeller device. The fast and convenient dismounting impeller device comprises two force arm rods, wherein the two force arm rods are oppositely arranged and are used for extending into a fan, the extending ends of the force arm rods is provided with a clamping part used for being clamped with a shaft sleeve of the fan, threaded holes are formed in the force arm rods, and bolts serving as supporting points are rotationally arranged in the threaded holes. According to the fast and convenient dismounting impeller device, the force arm rods, the clamping part and the bolts are used in a matched mode adopted, the stress part points originally concentrated on blades are changed into the shaft sleeve, the situation that an impeller body is damaged is avoided, disassembly and assembly are convenient, the labor intensity is low, and the working efficiency is high.