The present invention provides a washing machine, which can simply and reliably removing 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, and does not generate abnormal noise caused by the contact of components when the dewatering is activated. The washing machine (1) includes: a closed bottomed cylindrical first washing drum (3) forming a housing of a washing machine body (2) and having an upper opening; a closed bottomed cylindrical second washing drum (4) disposed in a specified distance from an inner circumferential surface of the first washing drum (3) and inside the first washing drum (3) in a freely rotating manner and serving as a dewatering drum; a circular plate portion (5) having stirring wings (52) extending radially outwardly of the second washing drum (4) and integrally formed with the second washing drum (4); and an electric motor (61) driving the sec
