The invention discloses a household waste classifying system. Waste classifying pipes are arranged above collecting containers correspondingly, perpendicularly penetrate through all floors side by side from bottom to top along a wall and extend to a top floor board of a building structure. The upper ends of hoses are connected with the lower ends of the waste classifying pipes correspondingly to be positioned, each of the lower ends of the hoses is connected with a flexible distributing pipe, and the other ends of the flexible distributing pipes are connected with connectors on the collectingcontainers. All kinds of dustbins are arranged in the collecting containers correspondingly. Classifying waste inner buckets are arranged in all kinds of dustbins, a dumping place is arranged on eachfloor, and multiple classifying dumping openings are formed in each damping place side by side. All kinds of different waste are classified to be dumped into the corresponding dumping openings, the portable dustbins are guided into waste pipelines, and the waste is classified to enter the waste classifying pipes from the dumping openings in each floor and directly enters the waste inner buckets tobe collected. An intelligent management system based on the Internet technology achieves dynamic monitoring, instruction dispatching, data recording, distribution, assessment, integration and positioning intelligent management of the whole process from waste classifying dumping to innocent treatment finishing.