A particles supply apparatus is equipped with cylindrical particles discharge unit(s) provided with particles discharge outlet(s) at lower portion(s) thereof, and is equipped with cylindrical shutter cap(s) covering outside circumferential surface(s) of particles discharge unit(s). Shutter cap(s) is/are provided with opening(s) for opening and/or closing particles discharge outlet(s) of particles discharge unit(s), and shutter cap(s) is/are disposed so as to be capable of moving in substantially parallel fashion with respect to axial direction(s) of particles discharge unit(s) while rotating in helical fashion.