To develop a coin purse which allows a user to easily take in and out coins, prevents coins from falling and is convenient for carrying.

A leather coin purse has a space bulged in the middle and appropriately circular shape in profile. The coin purse includes an outer leather and an inner leather of double-wall structure which has a cut off part slightly smaller than a semicircle in profile. A diameter of the inner leather is smaller than that of the outer leather. Screw holes are formed in side faces of the inner leather and the outer leather and one band screw is inserted to the screw holes so that the inner leather turns inside the outer leather using the band screw as the center. A band-like strap is fixed to one end of the outer leather in a turning direction of the inner leather. A first hook is attached in a lower face of the strap and a second hook is attached in the upper face of the inner leather in the turning direction. The inner leather is turned inside the outer leather so that the space in the upper face of the outer leather is closed for fixing by the first hook and the second hook so as to be opened and closed.