The utility model relates to the technical field of dust collection equipment, and provides a dust collection cleaning
system which comprises a switching base, a first
blind hole and a second
blind hole which are communicated with each other are formed in the switching base, and a cylinder communicated with the first
blind hole is arranged on the side face of the switching base. The dust suction
pipe is arranged in the cylinder body in a sliding manner; the dust collection cover is arranged at one end, opposite to the switching seat, of the dust collection
pipe; the powerful negative pressure device is used for providing negative pressure, and the powerful negative pressure device is communicated with the second blind hole; after weighing is finished, a dust collection state is started, the dust collection
pipe moves in the direction opposite to the switching base, so that the dust collection cover is connected with the stock bin in a sealed mode, the dust collection pipe is communicated with a powerful negative pressure device, and
coal samples in the stock bin are removed; after cleaning is completed, the
system enters a non-dust-collection state, the dust collection pipe moves in the direction towards the switching base so that the dust collection cover can be separated from the stock bin, the dust collection pipe is
cut off from the powerful negative pressure device, automatic cleaning of the
coal samples in the stock bin can be achieved, and the
coal samples remaining in the weighing
system can be efficiently and rapidly cleaned.