The utility model relates to a spiral conveyor for automatically taking materials. The spiral conveyor comprises a sleeve (1). A reamer shaft (4) is arranged in the sleeve (1), and a reamer (3) is connected onto the reamer shaft (4). The spiral conveyor is characterized in that a grid sleeve (2) is arranged at the front end of the sleeve (1). The spiral conveyor has the advantages that the grid sleeve and a sleeve bottom are arranged at a position, which is in contact with the taken materials, of the spiral conveyor, in other words, the grid sleeve and the sleeve bottom are arranged at the front end of the spiral conveyor, so that material feeding is facilitated; the position can be dragged to move during usage, so that the materials can be taken in all directions, the practicality and the convenience of the spiral conveyor are improved, and the serviceable range of the spiral conveyor is enlarged; and the spiral conveyor takes the materials via grid holes, accordingly, the reamer is effectively prevented from being in contact with the ground or a side wall, and the safety performance of the spiral conveyor is greatly improved.