Cleaning device for respiratory duct

The invention belongs to the technical field of respiratory medicine, and particularly relates to a cleaning device for a respiratory duct. The cleaning device comprises a fixing box, a fixing plate is installed on the upper surface of the fixing box, a surrounding plate is fixedly arranged at the top of the fixing plate, a sealing plate is installed on the upper surface of the surrounding plate, the interior of the fixing box is of a hollow structure, and a water pump is installed inside the fixing box. A connecting pipe and a fixing pipe can be conveniently fixed through a plurality of convex discs and a plurality of grooves, the cleaning range of the length of the respiratory duct is expanded, the bottom of the respiratory duct is supported through a fixing seat, the position of the fixing seat can be adjusted to the required height through cooperation of internal threads and external threads on the inner side wall of the fixing seat according to the length of the respiratory duct, a motor in the sealing p