Splicing type powder bin

The utility model relates to the technical field of concrete processing, in particular to a splicing type powder bin which comprises a storage tank, an auxiliary bin, a support and a splicing device, the auxiliary bin is placed on the upper surface of the storage tank, the longitudinal section of the auxiliary bin is in a disc shape, the support is fixedly connected to the lower surface of the storage tank, and the longitudinal section of the support is in a disc shape. The splicing device is arranged on the surface of the storage tank and comprises a guide sleeve, the guide sleeve is fixedly connected with the surface of the storage tank, the cross section of the guide sleeve is rectangular, the inner surface of the guide sleeve is slidably connected with a limiting plate, the cross section of the limiting plate is rectangular, the limiting plate makes contact with the surface of the auxiliary bin, and the lower surface of the auxiliary bin is fixedly connected with a containing ring. According to the powder