Abstract: An atomizing device including an atomizing nozzle is disclosed. The atomizing nozzle includes a spray head and an atomizing nozzle body. The spray head is arranged in the atomizing nozzle body. A through hole in the spray head and a liquid through hole in the atomizing nozzle body form a liquid channel used for delivering liquid. An airtight air channel used for delivering a spiral air flow formed by air is formed in the surface of the spray head and intersects with the liquid channel at an end, provided with the through hole, of the spray head. An air flow is sprayed out via the air channel outside of the sprayer head to form a spiral vortex, so that a siphon suction force is generated to suck liquid in the liquid channel.