Medicine spraying and oxygen conveying breathing mask for respiratory medicine department

The invention provides a medicine spraying and oxygen conveying breathing mask for the respiratory medicine department, and relates to the technical field of breathing masks for the internal medicine department. The medicine spraying and oxygen conveying breathing mask comprises a mask body and a bandage, an adjusting box is arranged on the bandage, a through groove is formed in the middle of the adjusting box, a winding shaft is rotationally installed in the through groove, and a bevel gear is fixedly installed at one end of the winding shaft; a center shaft is fixedly installed on the side face of the adjusting box, a clamping column is movably installed at one end of the center shaft, a notch is formed in the lower portion of one end of the clamping column, an installation hole is formed in one side of the adjusting box, a limiting rod is fixedly installed in the middle of the installation hole, and a torsional spring is arranged on the side face of the limiting rod. The clamping column can press one end o