A coin feeder (A) comprises a drum-shaped rotating body capable of feeding not only a single size of coins but also different sizes of coins within an allowable range. A coin receiving part (6) and a coin pressing projection (12) pressing a coin (CN) against the coin receiving part (6) are provided at the inner surface of the peripheral wall (2) of the drum-shaped rotating body (1) capable of rotating vertically with a number of coins (CN)(CN) . . . accommodated therein. A coin pressing projection (12) is operated according to the rotation of the dram-shaped rotating body (1) so as to press-hold the coin (CN) against the inner surface of the peripheral wall (2) and release the pressing of the coin at the upper position. Immediately before the coin press-hold state is released, a coin striking member strikes the coin (CN) and the coin pressing projection (12) urges the coin (CN) so as to eject the coin (CN) toward the side of the drum-shaped rotating body (1), i.e., the front of the coin feeder.