The invention relates to a double-duty applicator for solid and liquid mediums, comprising a columned bearer and an outer tube combined to contain solid medium, and extending from a double-stage columned base. At the other end of said base is fixed a soft tube containing liquid medium. Said outer tube covers the outside of the bearer, with inner threads on the inner wall therein, which matches with outer threads of the bearer. The bottom end of the outer tube is fixed outside a smaller columned flange of the base through fastening slots, and a limiting mechanism is positioned between the bottom of the bearer and the base to limit the turning of the bearer. The invention adds a liquid medium applicator to the conventional solid medium applicator structure, and combines both applicator structures together, thereby making it easy to carry and use.