The invention belongs to the technical field of cleaning machines, and discloses a self-cleaning blowdown device and cleaning equipment, and the self-cleaning blowdown device comprises a
machine shell, a fluid containing
assembly, a cleaning stirring mechanism and a sealing blowdown mechanism; the fluid containing
assembly comprises a first containing box arranged on the
machine shell, and a
sewage draining hole communicated with the
machine shell is formed in the first containing box. The sealing
pollution discharge mechanism is arranged in the first containing box and is opposite to the
pollution discharge hole, a stirring
assembly of the cleaning stirring mechanism is arranged in the first containing box and is movably connected with the sealing
pollution discharge mechanism, the first fluid in the box can be stirred, and the opening and closing states of the sealing pollution discharge mechanism and the pollution discharge hole are controlled through linkage movement of the stirring assembly and the sealing pollution discharge mechanism. The device achieves automatic opening and closing of the
sewage discharge hole by means of a forward and reverse rotation mechanism of the stirring assembly, namely mechanical linkage, manual operation is not needed, manpower consumption is reduced, meanwhile, the stirring assembly continuously stirs to reduce
dirt deposition, the cleaning frequency is reduced, self-cleaning of the
sewage tank is achieved, the sewage leakage risk is reduced, and environmental pollution is reduced. And the service life of equipment is prolonged.