A portable acidic water atomizer includes a casing; a source liquid tank provided within the casing; an electrolytic bath, for electrolyzing the supplied source liquid into acidic water and alkaline water; a pump for supplying source liquid within the source liquid tank to the electrolytic bath; an atomizing unit for spraying acidic water created in the electrolytic bath to outside of the casing; a waste liquid pipe, connecting the electrolyte bath and the waste liquid tank, for drawing alkaline liquid created by the electrolytic bath to a waste liquid tank; a control unit for controlling operation of the atomizing unit, the electrolytic bath, and the pump; and a power supply for driving the pump, electrolytic bath, atomizing unit and control unit.