Spiral plate cooler with wide channels and constant-section runners

The utility model discloses a spiral plate cooler with wide channels and constant-section runners. The spiral plate cooler comprises an inner drum body, spiral plates and a plurality of spacing columns, wherein cooling liquid channels and heating liquid channels are formed between the spiral plates; the spacing columns are uniformly distributed in the cooling liquid channels and the heating liquid channels; a cooling liquid inlet is formed in the top end of the inner drum body; a plurality of side wall through holes surround the side wall of the inner drum body; the inner drum body is communicated with the cooling liquid channels through all the side wall through holes; in the cooling liquid channels, two adjacent rows of spacing columns are staggered; in the heating liquid channels, the distance between the two adjacent spacing columns distributed along the length direction of the spiral plates is greater than that between the two adjacent spacing columns distributed along the width direction of the spiral p