Efficient oxygen-generation and air stagnation prevention chemical oxygen fire-fighting self-rescue respirator with cooling layer

The invention provides an efficient oxygen-generation and air stagnation prevention chemical oxygen fire-fighting self-rescue respirator with a cooling layer. The chemical oxygen fire-fighting self-rescue respirator comprises a mask (1), a breathing cover (2), an oxygen-generation tank (3) and an airbag (6), and is characterized in that the breathing cover is arranged on the mask and is connected with an opening of the airbag; an expiration one-way valve and an inspiration one-way valve are arranged at the connecting position of the breathing cover and the airbag; the oxygen-generation tank is arranged in the airbag, and an air inlet in the top of the oxygen-generation tank is connected with the breathing cover through the expiration one-way valve; meanwhile an air guide tube is connected with an air outlet in the bottom of the oxygen-generation tank. According to the self-rescue respirator, the oxygen-generation tank is arranged in the airbag, the airbag is effectively prevented from being wrinkled or adhered, and the air stagnation phenomenon is completely eradicated; a flow channel subdivision staggered fin type cooling structure is adopted in the oxygen-generation tank, the problem that the reaction in a medicament layer is uneven and the cooling problem are effectively solved, and meanwhile the temperature of generated oxygen is effectively lowered through the arrangement of a supporting heat conduction separation plate, a heat isolation layer and the air guide tube.