To provide both functions of small-amount foaming and sprinkling, and large-amount sprinkling to simply change over both functions and to efficiently sprinkle a liquid without receiving the effect of a wind.

A nozzle body 27 is divided into front and rear nozzle bodies 27a and 27b, the internal space on the rear side of the front nozzle body 27a is still more expanded, a flow rate control jet member 29 having a central hole 45 and pheripheral holes 46 is installed in the expanded space on the rear side of the front nozzle body 27a, the expanded space of the front side of the flow rate control jet member 29 is set as an air mixing chamber 80 provided with an air introducing hole 39, the front side of the rear nozzle body 27b is housed in the expanded space on the rear side, the front nozzle body 27a is made movable forward and rearward, the space between the inner surface of an operation cover 33 and the outer surface of the front nozzle body 27a is set as an air introducing passage 79, the operation cover 33 is supported in a freely revolvable manner by a connection cap 37, and the screws 43 and 53 provided to the partial inner and outer surfaces of the operation cover 33 and the front nozzle body 27a are threaded with each other.