Wallboard structure of pellet shaft furnace

The utility model provides a pellet shaft furnace wallboard structure which comprises a wall brick and an auxiliary brick body, the wall brick is composed of a main brick body and the auxiliary brick body, first positioning grooves are symmetrically formed in the two sides of the upper surface of the main brick body, first bosses are correspondingly connected to the positions, opposite to the first positioning grooves, of the lower surface of the main brick body, and meanwhile embedding grooves are symmetrically formed in the two ends of the wall brick. The auxiliary brick body is movably connected into the embedding groove, second bosses are symmetrically connected to the side faces of the two sides of the auxiliary brick body, third positioning grooves are symmetrically formed in the two ends of the upper surface of the auxiliary brick body, third bosses are fixedly connected to the positions, opposite to the third positioning grooves, of the lower surface of the main brick body, and second positioning groo