The utility model provides a mixing
machine capable of cleaning in place, which belongs to the field of mixing machines and comprises a water inlet
pipe used for being externally connected with a
water source, a cleaning cover, a mixing
machine and a
discharge port, the cleaning cover abuts against the upper end of the mixing
machine, a cleaning
pipe is arranged in the middle of the cleaning cover, the water inlet
pipe is connected with the cleaning pipe through a first pipeline, and a
water discharge port is arranged at the lower end of the mixing machine. The end, away from the drainage connector, of the second pipeline is connected with a third pipeline and a cleaning pump through a three-way valve, the end, away from the cleaning pump, of the third pipeline is connected to the
discharge port, the cleaning pump is connected with the first pipeline through a fourth pipeline, and a valve is arranged on the side, close to the second pipeline, of the third pipeline. Two
modes of external cleaning and internal circulation cleaning are set, the external cleaning is used for preliminarily cleaning the inner cavity of the hopper, removing most of material residues in the inner cavity of the hopper and discharging the material residues from the discharging opening, the internal circulation cleaning is used for circularly cleaning the inner cavity of the hopper, the cleaning effect is guaranteed, and
water resources are saved.