To maintain the capability of detection of counterfeit paper money even if liquid such as salt water is put into a slit (3) for receiving paper money, a path (6) through which paper money is conveyed comprises a horizontal part (6a) connected at one end to the slit (3) and at the other end to a vertical part (6b) that rises substantially perpendicularly and is provided with means (20) for detecting counterfeit paper money.
