Lower carrier roller of belt conveyer

The utility model discloses a lower carrier roller of a belt conveyer. The lower carrier roller comprises landing leg stand columns and a carrier roller support between the landing leg stand columns, carrier roller bodies arranged to be in a V type are arranged on the carrier roller support, edge supports are further arranged between the carrier roller bodies and the landing leg stand columns, the sides, close to the ends of the carrier roller bodies, of the edge supports are slant sides, and the included angles between the slant sides and the horizontal line are acute angles. By means of the technical scheme, the sides, close to the ends of the carrier roller bodies, of the edge supports are arranged to be the slant sides, it is guaranteed that the edge supports slant by the angles same as the included angle between the axes of the carrier roller bodies when the edge supports and the landing leg stand columns are welded, the slant sides of the edge supports are close to the ends of the carrier roller bodies,