Novel pressure-reducing carbonated beverage bottle

The utility model provides a novel pressure-reducing carbonated beverage bottle which comprises a double-layer bottle cap internally provided with two layers of organic nylon microporous filter membranes, a pull ring buckle is arranged above an inner bottle cap, the bottle cap pull ring buckle is arranged above the inner bottle cap, a layer of organic nylon microporous filter membrane is adhered to the bottom of the inner bottle cap, and the aperture of the organic nylon microporous filter membrane is 0.45 mu m. The caliber of the microporous filter membrane of the outer bottle cap is equal tothat of the microporous filter membrane of the outer bottle cap, the caliber of the microporous filter membrane of the outer bottle cap is equal to that of the outer bottle cap, the microporous filter membrane of the outer bottle cap is 0.45 micron, the microporous filter membrane of the outer bottle cap is slightly larger than that of the inner bottle cap, and the microporous filter membrane isadhered to the bottle cap