A coin feeding machine comprising: a rotary disk which is rotated at an inclined posture in which the surface faces the obliquely upward; a cover which forms a storing unit which stores coins between the cover and the surface of the rotary disk; a feeding unit formed by a feeding projection anda coin support portion, whichprotrudes from the surface of the rotary disk, wherein the feeding unit supports the coins in the storing unit one by one upon rotation of the rotary disk, and moves the coins to an upper region of the rotary disk, and the coin support portion supports the peripheral edge lower portion side of the coin picked up to the upper region of the rotary disk by the feeding projection; a feeding guide which feeds out of the rotary disk, the coins whose outer diameters are within a handling target range among the coins moved to the upper region of the rotary disk by the feeding unit upon the rotation of the rotary disk; and a removal section which removes, from the feeding unit, the coins whose outer diameters are out of the handling target range among the coins moved to the upper region of the rotary disk by the feeding unit upon the rotation of the rotary disk, and drops the coins into the storing unit, characterized in that the removal section has a small-diameter removal unit which protrudes from the surface of the rotary disk between the feeding projection and the coin support portion in line on the further inner circumferential side of the feeding projection, removes the coins whose outer diameters are smaller than the handling target range from the feeding unit by contact with the coins, so as not to be in contact with the coins being moved to the upper region of the rotary disk by the feeding unit upon the rotation of the rotary disk and whose outer diameters are within the handling target range, and so as to contact with only the coins whose outer diameters are smaller than the handling target range. a rotary disk which is rotated at an inclined posture in which the surface faces the obliquely upward; a cover which forms a storing unit which stores coins between the cover and the surface of the rotary disk; a feeding unit formed by a feeding projection anda coin support portion, whichprotrudes from the surface of the rotary disk, wherein the feeding unit supports the coins in the storing unit one by one upon rotation of the rotary disk, and moves the coins to an upper region of the rotary disk, and the coin support portion supports the peripheral edge lower portion side of the coin picked up to the upper region of the rotary disk by the feeding projection; a feeding guide which feeds out of the rotary disk, the coins whose outer diameters are within a handling target range among the coins moved to the upper region of the rotary disk by the feeding unit upon the rotation of the rotary disk; and a removal section which removes, from the feeding unit, the coins whose outer diameters are out of the handling target range among the coins moved to the upper region of the rotary disk by the feeding unit upon the rotation of the rotary disk, and drops the coins into the storing unit, characterized in that the removal section has a small-diameter removal unit which protrudes from the surface of the rotary disk between the feeding projection and the coin support portion in line on the further inner circumferential side of the feeding projection, removes the coins whose outer diameters are smaller than the handling target range from the feeding unit by contact with the coins, so as not to be in contact with the coins being moved to the upper region of the rotary disk by the feeding unit upon the rotation of the rotary disk and whose outer diameters are within the handling target range, and so as to contact with only the coins whose outer diameters are smaller than the handling target range.