Double start-up type solid chemical oxygenerator

Provided is a double start-up type solid chemical oxygenerator. An oxygen fixation device, an oxygen storage bag and a nasal oxygen cannula are connected with each other through a tee pipe joint. The oxygen fixation device comprises a seal shell and two oxygen pillars arranged in the seal shell, each oxygen pillar is provided with an ignition device, and an air vent nozzle which is matched with the tee pipe joint is arranged on the seal shell. The air vent nozzle is composed of an air vent guide pipe and a rubber sleeve; the guide pipe is sleeved with the rubber sleeve under a non-work state, a seal function is achieved, and the rubber sleeve is taken off before the oxygen fixation work is conducted. Oxygen produced by the oxygen fixation device enters the reservoir bag through an air guide pipe at one end of the tee pipe joint, and the oxygen is supplied for the nasal oxygen cannula and for a human body to breathe through an air guide pipe at another end of the tee pipe joint. The oxygen device comprises two oxygen pillars, fractional start-up, fractional supplement and oxygen storage can be achieved. When the oxygen fixation device stops producing oxygen, the oxygen in the oxygen storage bag can provide oxygen for continuous usage, so that the oxygen supply time is prolonged. The double start-up type solid chemical oxygenerator has the advantages that the service life is long, the size is small, the weight is light, the carrying and the usage are convenient, and the oxygen supply is not less that 100 L.