Single-pipe sectional type uniform grouting device

The single-pipe sectional type uniform grouting device comprises a grouting pipe, the grouting pipe comprises a grouting pipe outer pipe and a grouting pipe inner pipe, a guniting hole is formed in one side of the grouting pipe outer pipe, a lower sealing ring is fixedly arranged on the circumference of the outer side of a bottom opening of the grouting pipe inner pipe, an upper sealing ring is fixedly arranged above the lower sealing ring, and the lower sealing ring is fixedly connected with the grouting pipe outer pipe. An inner pipe guniting hole is formed between the lower sealing ring and the upper sealing ring, the lower portion of the grouting pipe is provided with a pile bottom annular grouting pipe, the lower portion of the pile bottom annular grouting pipe is connected with a plurality of symmetrically-arranged vertical grouting pipes, the upper portion of the pile bottom annular grouting pipe is provided with a pile side annular grouting pipe, and the grouting pipes are fixedly connected with a rei