Telescopic multifunctional classification dustbin

According to the multifunctional classification dustbin capable of being nested, all components are detachable modules, and the structures and the sizes of the components meet the standard that the components can be contained in a space with a certain height at the bottom of a dustbin body after being detached; the box body is basically divided into an unrecyclable basic chamber area, a recyclablebasic chamber area, a bag storage chamber area and other basic chamber areas by partition plates; a plurality of bag sleeving openings are formed in the edge of the box opening and the two sides of the main beam to be matched with garbage bags of various sizes for use, and the garbage classification variety is further increased by increasing the bag sleeving number; a bag taking opening is formedin the bag storage chamber; the parallel double-arch frame of the elastic structure is movably connected with the box cover, a key and a pedal are arranged on the arch frame, and the box cover is opened in the mode that the h