Sewage purification and disinfection device

The utility model discloses a sewage purification and disinfection device which comprises a collection box, a sewage outlet is formed in the bottom of the collection box, and a water inlet is formed in the left side of the collection box; the filter screen is mounted on the upper side of the interior of the collecting box; the left side of the top of the collecting box is fixedly connected with the purifying box; the disinfection box is fixedly connected to the right side of the top of the collection box, and a drainage pipe is arranged on the right side of the bottom of the disinfection box; and the disinfectant inlet is formed in the upper portion of the right side of the disinfection box, a first water pump is installed on the left side of the collection box, and the water inlet end of the first water pump extends into the collection box. According to the sewage purification and disinfection device, sewage is pretreated and precipitated, large particles in the sewage are prevented from blocking the interio