Breathing machine humidifier capable of automatically adding water

The utility model relates to the technical field of breathing machine humidifiers, in particular to a breathing machine humidifier capable of automatically adding water, which comprises a breathing machine humidifier body, and an air output adjusting mechanism and an automatic water adding mechanism which are positioned in the breathing machine humidifier body, an air outlet is formed in the top of the respirator humidifier body, an air inlet is formed in the right side of the air outlet, the air output adjusting mechanism comprises an adjusting block, a gear is connected to the lower portion of the adjusting block, and a gear ring is arranged on the left side of the gear. By means of the automatic water adding mechanism, the problems that when some existing breathing machine humidifiers are used for adding water, a switch and the water adding amount need to be manually controlled, so that nurses need to continuously inspect the water level condition in a humidifying tank, a large amount of manpower and time