Device and method for rapidly producing oxygen

The invention relates to a device and method for producing oxygen, in particular to a device and method for rapidly producing oxygen, aiming at the problems of the existing solid oxygen generator, such as complicated structure, too many used reagents and high cost, and the problem of an automatic oxygen generator that hydrogen peroxide is easily decomposed, hard to control and harmful to human bodies. The device for rapidly producing the oxygen comprises a container, an oxygen discharging pipe, a triggering pipe, a molecular sieve and oxygen producing reactants, wherein the oxygen producing reactants are put in the container; the molecular sieve is arranged at the opening of the container and forms a reacting cavity together with the container; the lower end of the triggering pipe is inserted into the oxygen producing reactants, and the upper end of the triggering pipe penetrates through the molecular sieve and is exposed out of the reacting cavity; the lower end of the oxygen discharging pipe penetrates thro