To provide the subject impurity removing apparatus capable of allowing brown rice to well flow while well removing impurities and capable of stably performing completion judge operation.

The impurity removing apparatus of a rice milling equipment arranged in a downward tapered tank 1 storing brown rice supplied to a rice milling machine and removing impurities in the brown rice is equipped with two large-sized plate-shaped bodies 21 made of a metal arranged at both ends, a plurality of medium-sized plate-shaped bodies 22 arranged between these large-sized plate-shaped bodies 21 at a predetermined interval, small-sized magnets 23 held between these plate-shaped bodies 21, 22 and connection bolt 13 for connecting the plate-shaped bodies and the magnets, and a plurality of through-holes 24 are formed in each of the large-sized plate-shaped bodies 21. By this constitution, the flow of brown rice at a place where the impurity removing apparatus is arranged becomes well without being obstructed.