Spray device for fire fighting

The present invention provides a spray device for fire fighting, which sprays atomized water to extinguish a fire. The spray device includes an upper body, a lower body which is removably coupled to the upper body, a nozzle tip which has a swirl therein and is removably inserted into each nozzle tip hole of the lower body, and an interposition unit. The spray device further includes an inclined surface, a tightening contact surface (-) provided on an outer surface of a circular head part of the upper body, a working groove to provide an internal thread on the lower body, and a hemispherical mesh which has a convex shape and is provided in a chamber defined at a center position between the upper body and the lower body.