Sprayer with replaceable housing

The utility model relates to a sprayer with a replacing housing. The sprayer comprises a sprayer body and the replaceable housing. The sprayer body is provided with an outer wall. The outer wall is provided with a guide groove and a clamping part arranged in the guide groove in a matched mode. The replaceable housing extends to form a protruding block, the protruding block is provided with a clamping-connecting part, and the protruding block slides in the guide groove. The clamping-connecting part is clamped with the clamping part and can be assembled and disassembled, so that the sprayer body is covered with the replaceable housing. Accordingly, the replaceable hosing can be conveniently assembled on or disassembled from the sprayer body, and therefore an old replaceable housing can be freely replaced with housings of different styles or new housings.