Guide chute is used to concetrate the material falling from the hopper to the middle of the conveyor before the falling material reaching the belt speed; Composed of three sections: front, middle and rear, which share almost same structure and differs in that: the front section is fitted with share almost same structure and differs in that: the front section is fitted with dust curtain, the rear section is fitted with backboard while the middle section has neither backboard nor dust curtain and it can be freely combined freely as necessary.