Attached wall brushing device of trenching machine

The utility model relates to a trenching machine attached type wall brushing device, and relates to the technical field of underground diaphragm wall construction equipment.The trenching machine attached type wall brushing device comprises a trenching machine and a connecting box, the trenching machine comprises a connecting support and a grab bucket, the grab bucket is rotatably arranged on the connecting support, and a plurality of telescopic blocks are slidably connected to the connecting box; the end, extending out of the connecting box, of the telescopic block is provided with bristles, the grab bucket is provided with a plurality of fixing hooks, the end, away from the bristles, of the connecting box is provided with fixing rings allowing the fixing hooks to be inserted, the connecting box is provided with a first pulling and connecting block, and the connecting support is provided with a second pulling and connecting block. The first pulling and connecting block and the second pulling and connecting bl