Handheld electric fan

The utility model provides a handheld electric fan which comprises a handle and a fan head, the fan head comprises an outer shell and an inner shell which are detachably connected, the outer shell comprises an installation cavity suitable for containing the inner shell, an air inlet and an air outlet, and the inner shell comprises a fluid cavity suitable for installing a fan assembly, an air inlet end and an air outlet end, a plurality of clamping blocks are evenly distributed on the inner circumferential wall of the installation cavity in the circumferential direction, a plurality of clamping grooves suitable for being matched with the clamping blocks are formed in the outer circumferential wall of the inner shell, the clamping grooves comprise guide grooves and limiting grooves, the guide grooves comprise first guide ends suitable for the clamping blocks to slide in and second guide ends suitable for being communicated with the limiting grooves, and the clamping blocks slide into the limiting grooves throug