Household garbage totally-closed classified collection and transportation system and garbage suction method implemented by same

The invention discloses a household garbage totally-closed classified collection and transportation system and a garbage suction method implemented by the same. At present, household garbage is exposed in air for a long time before terminal treatment, and various garbage concentration modes are not unified, so that the household garbage has great influence on a resident area, and standard and continuous treatment is difficult to realize. A compressed air pipeline is connected with a garbage conveying pipeline through an air control assembly, and the garbage conveying pipeline comprises a building built-in pipeline, a first storage section pipeline, a second storage section pipeline, a first main pipe section, a first branch pipe section, a second branch pipe section, a third branch pipe section, a fourth branch pipe section, a second main pipe section and a discharge pipe. The building built-in pipeline is vertically arranged in a building, a plurality of garbage throwing openings are machined in the building