Water-saving drainage arrangement capable of recycling domestic water

The utility model relates to a water saving and draining device, which can recycle water for living. The device consists of a three-way water pipe. A filtering device matching with the inside diameter of the water pipe is arranged at the inlet of the three-way water pipe. The filtering device is provided with a control device, which controls the switch of the water inlet in the on and off state. The lower end of the filtering device is fixed and connected with a pull-rod, the other end of the pull-rod is fixed and connected with a piston, and the pull-rod is still provided with a sealing ring fixed and connected through a supporting bracket. The filtering device, the pull-rod, the sealing ring and the piston move up and down jointly to form a switching device, which switches the alternate on and off state of the water inlet, the first water outlet and the second water outlet of the three-way water pipe. The utility model facilitates users to gather cleaner water after the first use selectively, has simple str