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. A groove is formed in the outer wall inwards. The sprayer body is provided with a convex block which is arranged on one side of the groove in a matched mode. The replaceable housing extends to form a clamping block. The clamping block penetrates through the groove and is clamped with the convex block. The sprayer body is covered with the replaceable housing. According to the sprayer with the replaceable housing, the replaceable housing 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.