The invention relates to the technical field of environmental protection resources, and discloses a household rainwater recycling device. The device comprises a drainage pipe, a collector is insertedin the center of the inner part of the drainage pipe, a connection fixing block is fixedly connected to the right side of the collector, and a water conveying pipe is fixedly connected to the right side of the connecting fixing block; a filter is fixedly connected to the left side of the water conveying pipe, a filtering rainwater conveying pipe is fixedly connected to the lower portion of the center of the water conveying pipe, a purifier is fixedly connected to the right side of the center of the water conveying pipe, and a purified rainwater conveying pipe is fixedly connected to the lowerpart of the right side of the water conveying pipe; and isolating fixing nets are fixedly connected to the left side and the right side of the inner center of the purifier, activated carbon is arranged in the center of the isolating fixing nets on the left side and the right side, and threaded grooves are formed in the upper side and the lower side of the connecting fixing block. Through the cooperation of the filter and the purifier, the effect that rainwater is filtered and further purified is achieved.