Improvement for the device to deliver the powdery medicine into nasal cavities in which a capsule setting/detaching part 40 is built drawably in the capsule housing/holding part 30, and cutting blades 60A, 60B are built in both axial ends of the capsule setting/detaching part 40 of the capsule housing/holding part 30 for cutting both axial ends of the capsule thereby perforating the capsule. A medicine capturing/collecting part 32 and a one-way valve 33 are built in a lower portion of the capsule housing/holding part 30, and a pump 50 having an air inlet valve 54 is built in the air flow inlet side thereof. A medicine delivery part 20 is built in the air exit of the capsule housing/holding part 30, a nozzle 22 is installed and medicine in the capsule can be dosed to the nasal cavities of the user by pressing the pump 50.