Humidifier

A humidifier, comprising:

• a water tank for storing water;
• a humidifying water tank which is disposed in a lower side of the water tank, and generates humidified air by using water supplied to the water tank;
• a water supply pipe which is disposed in the lower side of the water tank, and supplies the water supplied from the water tank to the humidifying water tank;
• and
• an inner guider disposed spaced apart from an outer circumference of the water tank, wherein a discharge passage through which the humidified air generated in the humidifying water tank flows is formed between the water tank and the inner guider, wherein the inner guider comprises a bottom wall which has a first bottom hole that is disposed in the lower side of the water tank and communicates with the humidifying water tank and the discharge passage, and a second bottom hole in which at least a portion of the water tank and the water supply pipe is disposed, wherein the bottom wall forms an inclined surface so that the first bottom hole is located lower than the second bottom hole.