Three-hole humidifier

The utility model discloses a three-hole humidifier, which is characterized in that a control PCB (Printed Circuit Board) is arranged in a base, an oscillation sheet is arranged on the control PCB, a DC (Direct Current) fan bracket is arranged in the base, a DC fan is arranged in the DC fan bracket, and a power line of the DC fan is connected with the control PCB; a water tank is installed above the base, three hollow air guide columns are evenly arranged in the water tank, an air inlet is formed in the inner side of the water tank, and the position of the air inlet is matched with the position of an air outlet in the top of the DC fan; the water tank is sleeved with the upper cover, a downward-protruding air guide groove is formed in the position, corresponding to the top of the air guide column, of the bottom of the upper cover, the lower end of the air guide groove covers the top of the air guide column, and an air outlet hole is formed in the upper cover at the top of the air guide groove. According to th