The invention discloses a 
lung function 
rehabilitation physical therapy device for the 
respiratory medicine department, and relates to the technical field of 
medical treatment. The device comprises an air delivery 
pipe, an air 
nozzle, a plastic 
identification plate, a disinfection mechanism and a lifting 
rope, one end of the air delivery 
pipe is connected with the air 
nozzle, the other end of the air delivery 
pipe is connected with a columnar air cylinder, a plastic ball is slidably connected into the columnar air cylinder, the plastic 
identification plate is fixed to the top of the plastic ball, the air 
nozzle is sleeved with a protective cover, and the disinfection mechanism is fixed into the protective cover. A regulation and control mechanism is movably connected to a transverse pipe of the gas conveying pipe, and a lifting 
rope is fixed to a vertical pipe of the gas conveying pipe. By arranging the air delivery pipe, the air nozzle, the plastic 
identification plate, the disinfection mechanism and the lifting 
rope, after the air nozzle is used, the air nozzle can be sterilized and disinfected, 
bacteria are not prone to breeding when the air nozzle is placed for a long time, the floating height of the plastic ball can be observed in time through the plastic identification plate, carrying and using are very convenient, and the automatic regulation and control of 
breathing resistance are facilitated; and the physical 
rehabilitation of the patient is facilitated.