The liquid ejecting device uses pressurized gas to eject liquid as a spray of fine particles and is provided with internal gas-flow passageway to supply pressurized gas, and a nozzle section with a slit-shaped liquid ejecting opening to discharge liquid. The nozzle section is near the end of the an elongated main unit of the liquid ejecting device, and gas jet openings to discharge pressurized gas are established between inclined nozzle surfaces and sidewalls of the main unit. The liquid ejecting opening is connected with liquid-flow passageway and the gas jet openings are connected with the gas-flow passageway. Viewed in cross-section, the inclined nozzle surfaces are formed such that their extensions intersect above the liquid ejecting opening on a line extending from the liquid ejecting opening, and pressurized gas is discharged as jets along the inclined nozzle surfaces to intersect in a manner that sandwiches the liquid in between and breaks-up the liquid-flow to produce a spray of fine particles.