Portable oxygen inhalation device

The utility model provides a portable oxygen inhalation device, which is characterized in that one end of an oxygen bag body is connected with an air channel interface communicated with an inner cavity of the oxygen bag body, one end of an air delivery hose is provided with an air channel joint B connected and matched with the air channel interface, and a hasp is sewn at the end part of the oxygen bag body. The flow adjusting mechanism is arranged outside the air conveying hose in a sleeving mode through an air pipe through hole formed in an end plate of the flow adjusting mechanism and is composed of a shell, a rotating shaft, a fixed baffle, an elastic positioning unit, a semicircular gear and a shifting plate, the elastic positioning unit is composed of a positioning cylinder, a positioning assembly and a spring, and the positioning assembly is composed of a positioning seat body and a gear tooth single body. The semicircular gear is rotatably sleeved on the central rotating shaft of the shell through the