The invention discloses a rotatable classification garbage can. The rotatable classification garbage can comprises a first supporting column and a second supporting column, wherein T-shaped rotating rods can be fixedly connected to the inner side of the first supporting column and the inner side of the second supporting column correspondingly, one side of each T-shaped rotating rod is movably sleeved with a cavity block, one sides of the cavity blocks are fixedly connected with shells, a top cover is fixedly connected to the tops of the first supporting column and the second supporting column,and a first guide plate is fixedly connected to the inner sides of the first supporting column and the second supporting column. Through the designed T-shaped rotating rods and the designed cavity blocks, the shells can be turned over, people can throw garbage conveniently, meanwhile, through arrangement of a sleeve rod, a guide rod, a first reset spring, a first limiting plate and a clamping block, the shells can be automatically reset after rotating and moving, therefore the practicability of the device is improved, and the problems that an existing device is low in garbage throwing efficiency, and some garbage can fall out of a garbage can are solved.