Long-shaft conveying speed reducer

The utility model discloses a long shaft conveying speed reducer which comprises a box body, a first transmission shaft and a second transmission shaft which are perpendicular to each other are installed on the box body, a first bevel gear and a second bevel gear which can be meshed with each other are fixedly installed on the first transmission shaft and the second transmission shaft respectively, and bearing supports are arranged on the left side and the right side of the box body. The first transmission shaft is rotatably mounted on the two bearing supports, a first bevel gear located in the box body is fixedly mounted at the left end of the first transmission shaft, a long shaft conveying section is arranged at the right end of the first transmission shaft in a manner of extending out of the box body, a shaft sleeve flange is fixedly mounted on the box body, and the second transmission shaft is rotatably mounted in the shaft sleeve flange; the second bevel gear is fixedly installed at the end, located in