A spray jet discharging device of long range whose function is based on the production of a powerful air stream with liquid droplets dispersed therein the maximum velocity of the spray jet being at least 300 km/h. The air stream is produced by a centrifugal fan with a spiral housing (1 ). The device is mainly used for fire extinguishing. It may be mounted at fixed points or on land vehicles via a suitable support for the fan which enables both rotation of the spray jet beam in the horizontal plane and changing of its inclination angle in the vertical plane. It may be remotely controlled (10) or manually operated (60). There is also a version of the device for aerial fire fighting operations (90) configured to be suspended from an aircraft e.g. a helicopter and a device for portable use (1 10) which can be carried by a fireman.
