An air conditioner, comprising: a housing having a first outlet and a second outlet; a first channel communicating with the first outlet; a second channel communicating with the second outlet; a tank unit to hold water for cooling first air flowing through the first channel and second air flowing through the second channel; a cooling unit to cool the first air by heat of vaporization of the water held in the tank unit; a water supply channel for supplying the water held in the tank unit to the cooling unit; and a water recovery channel for collecting water remaining in the cooling unit to the tank unit, wherein the cooling unit includes: a sensible heat exchanger to cool the second air by heat exchange with water supplied from the tank unit and cool the first air by sensible heat exchange between the cooled second air and the first air; and a vaporization filter to cool the first air by heat of vaporization of water supplied from the tank unit, and characterized in that the second channel has a turning portion provided downstream of the sensible heat exchanger in a flow direction of the second air in which the flow direction of the second air changes from a downward flow direction to an upward flow direction, thereby forming a gas-liquid separator for separating water from the second air. a housing having a first outlet and a second outlet; a first channel communicating with the first outlet; a second channel communicating with the second outlet; a tank unit to hold water for cooling first air flowing through the first channel and second air flowing through the second channel; a cooling unit to cool the first air by heat of vaporization of the water held in the tank unit; a water supply channel for supplying the water held in the tank unit to the cooling unit; and a water recovery channel for collecting water remaining in the cooling unit to the tank unit, wherein the cooling unit includes: a sensible heat exchanger to cool the second air by heat exchange with water supplied from the tank unit and cool the first air by sensible heat exchange between the cooled second air and the first air; and a vaporization filter to cool the first air by heat of vaporization of water supplied from the tank unit, and characterized in that the second channel has a turning portion provided downstream of the sensible heat exchanger in a flow direction of the second air in which the flow direction of the second air changes from a downward flow direction to an upward flow direction, thereby forming a gas-liquid separator for separating water from the second air. a sensible heat exchanger to cool the second air by heat exchange with water supplied from the tank unit and cool the first air by sensible heat exchange between the cooled second air and the first air; and a vaporization filter to cool the first air by heat of vaporization of water supplied from the tank unit, and characterized in that the second channel has a turning portion provided downstream of the sensible heat exchanger in a flow direction of the second air in which the flow direction of the second air changes from a downward flow direction to an upward flow direction, thereby forming a gas-liquid separator for separating water from the second air.