Improved rat and mouse metabolism cage

The utility model discloses an improved rat and mouse metabolism cage which is characterized in that a filtering cage cover is arranged at the top end of an upper cage, an inverted-cone-shaped lower cage connected with the upper cage is arranged in a lower chamber, the inner wall of the inverted-cone-shaped lower cage is coated with an aerogel layer, an annular flow guide pipeline is installed at the bottom end of the inverted-cone-shaped lower cage, and an excrement collecting pipe is arranged below the inverted-cone-shaped lower cage in a sleeved mode. The excrement collecting pipe is fixedly embedded in the ground of the lower chamber, the liquid outlet end of the annular flow guide pipeline is located above the urine collecting pipe, and the urine collecting pipe is fixedly embedded in the bottom mounting face of the lower chamber and located on one side of the excrement collecting pipe. According to the scheme, the inverted cone lower cage with the hydrophobic structure and the urine collecting pipe with