Detachable rainwater collecting barrel

The detachable rainwater collecting barrel comprises a barrel body structure, an upper barrel cover and a lower barrel cover, the barrel body structure comprises an upper barrel body assembly, a lower barrel body assembly and a barrel body fixing ring, the upper barrel cover is detachably connected with the top of the upper barrel body assembly, the lower barrel cover is fixedly connected with the bottom of the lower barrel body assembly, and the upper barrel body assembly comprises a plurality of first assembling plates; the lower can body assembly comprises a plurality of second assembling plates, the bottom of the upper can body assembly comprises a first connecting part, the top of the lower can body assembly comprises a second connecting part, and the first connecting part and the second connecting part are connected through a can body fixing ring. According to the detachable rainwater collecting barrel, the boxing size is minimized through combination of the upper barrel body assembly, the lower barrel