Multi-purpose door for animal house

The utility model provides a multipurpose door for an animal house, which comprises a main door, and a mounting space is formed at the lower part of the main door; the auxiliary door is connected to the installation space in a sliding mode, the auxiliary door slides in the first direction, when the auxiliary door slides to a first station, the installation space is in a completely-opened state for animals to enter and exit, and when the auxiliary door slides to a second station, the installation space is in a completely-closed state for animals to enter and exit. And the main door and the auxiliary door are connected into a whole. The auxiliary door is integrally arranged on the main door, the main door and the auxiliary door can be installed in advance, then the main door and the animal house are installed, connection nodes between the animal house and the door body are reduced, and disassembly and installation are convenient. In addition, the main door and the auxiliary door are designed in an integrated mo