The invention discloses a garbage classified recycling treatment environmental-protection device. The garbage classified recycling treatment environmental-protection device comprises a second motor, astirring roller, a partition plate, a degradable garbage smashing area, a plastic smashing area, a third motor, a rotating rod, a smashing blade, a bearing, an air heater, an air pipe, sliding rails,a handle, a drawer, a partition net, a metal storage box, a leading-out sliding way, a separation area, a tooth guide rail, a protective shell, a forward and reverse rotating motor, a cylindrical gear, a mounting plate, rotating wheels, an electromagnet, a connecting rod, a rolling groove, a movable plate, a reset spring, a limiting plate and hinges. Through the partition net, the drawer can be mounted at the bottom of the metal storage box; drying agents are placed in the drawer so as to absorb moisture in air; the air heater blows hot air into the metal storage box through the air pipe so that moisture of metal can be conveniently evaporated for achieving dryness, the oxidizing reaction of the metal slows down, accordingly rust of the metal is relived, and the recycling rate of the metal is increased.