the objective of the present invention is to provide a washing machine capable of removing earth / sand , waste thread , dust and the like stuck to the washing . in order to realize the objective , the washing machine is constituted so as to be operated as follows : overflowed washing water or rinsing water from washing / dehydrating tank to an annular drainage pipe by reciprocating revolutions of the tank is led to a side pipe , where the water is filtered and circulated to the tank by a pump arranged in the middle of the side pipe for utilizing the washing or the rinsing operation .