Cosmetic case having an air vent structure for refill container

In the cosmetic case having a main body (1), first and second covers (2, 12) which reveal or cover the main body (1) and a refill container (10) respectively, a hinge portion (3) which is attached to the outside of the main body (1) so as to let covers (2, 12) move respectively, and locking devices for each cover are provided, where the main body (1) has a cartridge (4), in which the refill container (10) is inserted, and a powder container (6) for powder (20), and a packing (16) is provided along a side-surface of the refill container (10) containing materials of the beauty product with a volatile agent, the cosmetic case is characterized in that:

• a safe landing pit (122) with a first ventilating opening (124) and a valve (100) shaped by a tension plate (110) with a protrusion portion (111) in its bottom surface and a second ventilating opening (112) are provided in the second cover (12) for the refill container (10),
• wherein the compressed air inside of the refill container (10) is discharged to outside through the first ventilation opening (124) of the safe landing pit (122) and the second ventilation opening (112) of the valve (100) when the second cover (12) for the refill container (10) only is closed, and the first ventilation opening (124) of the second cover (12) is blocked to seal by the protrusion portion (111) of the valve (100) which is pressed downward by the first cover (2) for the main body (1) when the first cover (2) is closed after closing the second cover (12).