Dough mixer

A dough mixer, comprising:

• a main unit, wherein a motor is arranged in the main unit;
• and
• a dough mixing assembly mounted on the main unit, comprising:
• a dough mixing bowl;
• a top cover;
• a transmission shaft connected to the motor, wherein the transmission shaft is arranged in the dough mixing bowl;
• a dough mixing unit connected to the transmission shaft and comprising an upper end;
• and
• a scraper unit detachably connected to the upper end of the dough mixing unit, comprising:
• a first bowl wall scraper, comprising a first blade fitted to an inner wall of the dough mixing bowl;
• a second bowl wall scraper, comprising a second blade fitted to the inner wall of the dough mixing bowl, wherein the second bowl wall scraper is arranged opposite to the first bowl wall scraper;
• and
• a central scraper, comprising a third blade matched with an outer wall of the transmission shaft, wherein the first and second bowl wall scrapers and the central scraper are configured to scrap off adhering material on the dough mixing assembly.