Airtight loose powder container

An airtight loose powder container, comprising an outer lid, an inner lid, an inner sifter and a base, wherein the inner sifter is airtightly provided at an open end of the base, and the inner sifter is located between the inner lid and the base;

• the inner lid and the inner sifter are hinged through a hinge unit;
• the hinge unit is elastic, such that the inner lid under stress moves toward the inner sifter;
• and when the outer lid covers the base, the outer lid squeezes the inner lid, such that the inner lid is airtightly attached to the inner sifter;
• wherein the hinge unit comprises a hinge shaft, a lug, and an elastic member;
• the hinge shaft is provided on the inner lid;
• the inner sifter is provided with an upper open end and a lower open end;
• a channel for allowing a material to pass through is formed in the lower open end;
• the upper open end extends upward to form the lug;
• a hinge hole and an aperture communicating with each other are formed in the lug;
• the hinge shaft is placed into the hinge hole through the aperture, such that the inner lid is hinged with the inner sifter;
• and the elastic member for supporting the hinge shaft is further provided on the lug;
• and
• wherein the elastic member comprises two elastic claws, each of the elastic claws is obliquely arranged relative to a horizontal plane, such that the hinge shaft is clamped into the hinge hole through the aperture along the elastic claws, and a free end of both of the elastic claws points to the hinge shaft when the hinge shaft is clamped in the hinge hole.