HUMIDIFIER

The present invention relates to a humidifier. The humidifier of the present invention includes a first humidifying water tank in which a first chamber for heating water is formed; a second humidifying water tank which is connected to the first humidifying water tank, and has a second chamber for generating humidified air by using water supplied from the first humidifying water tank through a vibrator; a fan which is disposed below the second humidifying water tank, and forms an air flow; and a connection pipe which sends water stored in the first humidifying water tank to the second humidifying water tank, wherein, an exhaust hole for discharging humidified air generated in the second chamber to the outside, and an air supply hole for supplying air flowing by the fan to the second chamber are formed in the second humidifying water tank, wherein, a lower extension wall, which is disposed between the exhaust hole and the air supply hole, and guides air flowing into the second chamber through the air supply hole to a lower portion of the second chamber, is disposed in the second humidifying water tank.