An air purifier, comprising: a purifier main body; a first air blowing means provided in the purifier main body to introduce, purify, and discharge external air; an air guidance part provided on a movement path of the air discharged from the first air blowing means and pivotably coupled to an upper surface of the purifier main body to determine an air discharge direction; and a second air blowing means installed on the air guidance part to blow air, wherein the air guidance part includes: a cover top provided on the upper surface of the purifier main body and provided on a movement path of purified air discharged from the first air blowing means; and a pivotably installed portion pivotably coupled to the cover top, and having the second air blowing means installed therein, characterized in that the pivotably installed portion includes: a lower grill provided in an upper portion of the cover top and having the second air blowing means mounted thereon; an upper grill coupled to an upper portion of the lower grill and forming a space in which the second air blowing means is accommodated; and a rotation guide coupled to the lower grill through the cover top with the cover top interposed between the rotation guide and the lower grill, to guide the pivotably installed portion to pivot on the cover top, wherein the cover top has a guide rail guiding rotation of the pivotably installed portion on a bottom surface, and the rotation guide is installed to move on the guide rail and coupled to the lower grill through the guide rail. a purifier main body; a first air blowing means provided in the purifier main body to introduce, purify, and discharge external air; an air guidance part provided on a movement path of the air discharged from the first air blowing means and pivotably coupled to an upper surface of the purifier main body to determine an air discharge direction; and a second air blowing means installed on the air guidance part to blow air, wherein the air guidance part includes: a cover top provided on the upper surface of the purifier main body and provided on a movement path of purified air discharged from the first air blowing means; and a pivotably installed portion pivotably coupled to the cover top, and having the second air blowing means installed therein, characterized in that the pivotably installed portion includes: a lower grill provided in an upper portion of the cover top and having the second air blowing means mounted thereon; an upper grill coupled to an upper portion of the lower grill and forming a space in which the second air blowing means is accommodated; and a rotation guide coupled to the lower grill through the cover top with the cover top interposed between the rotation guide and the lower grill, to guide the pivotably installed portion to pivot on the cover top, wherein the cover top has a guide rail guiding rotation of the pivotably installed portion on a bottom surface, and the rotation guide is installed to move on the guide rail and coupled to the lower grill through the guide rail. a cover top provided on the upper surface of the purifier main body and provided on a movement path of purified air discharged from the first air blowing means; and a pivotably installed portion pivotably coupled to the cover top, and having the second air blowing means installed therein, characterized in that the pivotably installed portion includes: a lower grill provided in an upper portion of the cover top and having the second air blowing means mounted thereon; an upper grill coupled to an upper portion of the lower grill and forming a space in which the second air blowing means is accommodated; and a rotation guide coupled to the lower grill through the cover top with the cover top interposed between the rotation guide and the lower grill, to guide the pivotably installed portion to pivot on the cover top, wherein the cover top has a guide rail guiding rotation of the pivotably installed portion on a bottom surface, and the rotation guide is installed to move on the guide rail and coupled to the lower grill through the guide rail. a lower grill provided in an upper portion of the cover top and having the second air blowing means mounted thereon; an upper grill coupled to an upper portion of the lower grill and forming a space in which the second air blowing means is accommodated; and a rotation guide coupled to the lower grill through the cover top with the cover top interposed between the rotation guide and the lower grill, to guide the pivotably installed portion to pivot on the cover top, wherein the cover top has a guide rail guiding rotation of the pivotably installed portion on a bottom surface, and the rotation guide is installed to move on the guide rail and coupled to the lower grill through the guide rail.