The utility model discloses a family's drinking water clearing machine, including host processing jar and disinfection jar, be provided with water service pipe and mounting on the host processing jar, the water service pipe link up the host processing jar, be provided with water inlet, drain and water flow control valve on the water service pipe, the water inlet is located the left side of water service pipe, the below of water inlet is provided with anti - flushing valve, the drain is located anti - flushing valve's below, be provided with the blowoff valve on the drain, the water flow control valve position is in the top of water inlet, the mounting is located the right side of host processing jar to fixed disinfection jar, disinfection jar and logical water piping connection, be provided with the steel ring on the disinfection jar, the steel ring is fixed with the mounting, a disinfection jar below is provided with the delivery port, this family's drinking water clearing machine has simple structure, the water treatment is effectual and simple to operate's advantage.