An air purifier comprising: an intake flow path through which air introduced from an inlet flows; a flow path control member on the intake flow path; and a housing, wherein the flow path control member is installed on a flow path between the intake flow path and a plurality of discharge ports (112, 122, 132), wherein the plurality of discharge ports (112, 122, 132) comprises: a first discharge port formed on one side of the housing; a second discharge port formed on an upper side of the housing; a third discharge port which is formed on the other side opposite to the one side of the housing and in which a humidifying filter is located; a first discharge flow path communicating the first discharge port with the intake flow path; a second discharge flow path communicating the second discharge port with the intake flow path; and a third discharge flow path communicating the third discharge port with the intake flow path, wherein the intake flow path is in communication with any one or more of the first discharge flow path, the second discharge flow path, and the third discharge flow path by way of the flow path control member, wherein, even when the flow path control member closes the third discharge flow path, a guide for guiding air into the third discharge flow path is positioned at an inlet portion of the third discharge flow path. an intake flow path through which air introduced from an inlet flows; a flow path control member on the intake flow path; and a housing, wherein the flow path control member is installed on a flow path between the intake flow path and a plurality of discharge ports (112, 122, 132), wherein the plurality of discharge ports (112, 122, 132) comprises: a first discharge port formed on one side of the housing; a second discharge port formed on an upper side of the housing; a third discharge port which is formed on the other side opposite to the one side of the housing and in which a humidifying filter is located; a first discharge flow path communicating the first discharge port with the intake flow path; a second discharge flow path communicating the second discharge port with the intake flow path; and a third discharge flow path communicating the third discharge port with the intake flow path, wherein the intake flow path is in communication with any one or more of the first discharge flow path, the second discharge flow path, and the third discharge flow path by way of the flow path control member, wherein, even when the flow path control member closes the third discharge flow path, a guide for guiding air into the third discharge flow path is positioned at an inlet portion of the third discharge flow path. a first discharge port formed on one side of the housing; a second discharge port formed on an upper side of the housing; a third discharge port which is formed on the other side opposite to the one side of the housing and in which a humidifying filter is located; a first discharge flow path communicating the first discharge port with the intake flow path; a second discharge flow path communicating the second discharge port with the intake flow path; and a third discharge flow path communicating the third discharge port with the intake flow path, wherein the intake flow path is in communication with any one or more of the first discharge flow path, the second discharge flow path, and the third discharge flow path by way of the flow path control member, wherein, even when the flow path control member closes the third discharge flow path, a guide for guiding air into the third discharge flow path is positioned at an inlet portion of the third discharge flow path.