To implement atomizing device in which a working area is widened by providing a path means so that a discharge flow of liquid may flow in a widened flow pattern and forming an opening in a residence place so that liquid may be atomized by shearing force by liquid in the flow pattern.

In an atomizing device 1, a pump 10 is utilized so that liquid may be forcibly fed through a piping system having two branch pipes 16, 18. And a straight pipe 20 having end parts 22, 24 is connected to the branch pipes 16, 18 respectively, and by the straight pipe 20, two flows of liquid are made to face each other, and are joined at a position 26 of the straight pipe 20. A residence place is formed at this position 26, and from the residence place, shearing force is generated in liquid to be atomized, and also an opening is formed to allow a discharge flow 30 of liquid to flow in a widened flow pattern from the straight pipe 20. In this way, the atomizing device in which a working area is more widened is controlled.