A liquid sprayer according to the first embodiment of the invention comprises a casing (1) having a flow-through channel composed of sequentially joined inlet portion (2) formed as a converging tube, a cylindrical portion (3) and an outlet portion (4) formed as a conical diffuser. A length of cylindrical portion (3) is not less than a radius thereof. A cone angle of the diffuser forming the outlet portion (4) of the flow-through channel is greater than a cone angle of the converging tube forming the inlet portion (2) of the same channel. According to the second embodiment of the invention, the converging tube forming the inlet portion of the flow-through channel is made conoid-shaped. Implementation of the invention allows steady-state fine-dispersed liquid flow to be generated at the minimal energy consumption.
