A sprayer according to the invention may include a body which has a suction inlet at the back of a blower module assembly and a neck, of which an inner sectional area becomes gradually smaller as it goes towards a front side, on a front side of the blower module assembly; a chemical container that is assembled to a chemical container assembly of the body and includes a chemical container top whichhas a check valve at a chemical injection port for the flow of air with the outside to open and close the chemical injection port, and a chemical discharge hole that is formed at a lower portion thereof; a blower module that is installed in the blower module assembly of the body such that exterior air is sucked into the body and discharged to the outside through the neck; a shifting pump that isconnected to the chemical discharge hole of the chemical container by a connection pipe; an ejection nozzle assembly that is connected to the shifting pump by a connection pipe; and a fixing cap thatis separated from and coupled to an end of the neck of the body and in the shape of a tube with the front and back open.