Nanometer powder air -permeable sack

The utility model belongs to the technical field of container bag's technique and specifically relates to nanometer powder air -permeable sack. It has the bag body, the bag body is mainly by forming from the interior first nanometer filter layer that outwards sets gradually, second nanometer filter layer, waterproof layer and wearing layer, the clearance sets up between first nanometer filter layer and the second nanometer filter layer, the upper end of the bag body is provided with the mouth of blowing, the one end UNICOM of blowing mouthful is external, the first nanometer filter layer of other end UNICOM of blowing mouthful and the clearance between the second nanometer filter layer, the lower extreme of the bag body is provided with the extraction opening, the one end UNICOM of extraction opening is external, the first nanometer filter layer of other end UNICOM of extraction opening and the clearance between the second nanometer filter layer. This nanometer powder air -permeable sack through the cooperati