To provide a self-propelled ion-emitting apparatus capable of emitting ions effectively according to a position of the ion-emitting apparatus.

A self-propelled air cleaner 110 to which the self-propelled ion-emitting apparatus is applied includes: a position information-acquiring part 525 for acquiring position information on the position of the self-propelled air cleaner; and a controlling part 52 for changing at least one of the amount of ion discharged from an outlet and the direction of the ion discharged therefrom, according to the position information acquired by the position information-acquiring part 525.