A washing machine, which can simply and reliably remove stains on an outer circumferential surface of a washing drum forming a dewatering drum and greatly increase the assembling efficiency and the space efficiency by reducing common used components The washing machine includes: a closed bottomed cylindrical first washing drum forming a housing of a washing machine body and having an upper opening; a closed bottomed cylindrical second washing drum disposed in a specified distance from an inner circumferential surface of the first washing drum and inside the first washing drum in a freely rotating manner and serving as a dewatering drum; a circular plate portion having stirring wings extending radially outwardly of the second washing drum and integrally formed with the second washing drum; and an electric motor driving the second washing drum and the circular plate portion to rotate together.
