Fermentation pit for brewing Luzhou-flavour liquor

The utility model discloses a fermentation pit for brewing Luzhou-flavour liquor, comprising a pit body having a height of 1.8-2.5 m, wherein 1-2 pit mud layers are arranged on the upper part and the middle part of the accommodating cavity of the pit body respectively, the pit mud layer comprises a plurality of circular pit mud balls which are horizontally arranged in parallel, support structures used for supporting the pit mud balls are arranged on the lower parts of the pit mud balls, the cross section of the pit mud layer is not less than 15% of the cross section area of the corresponding fermentation pit, and the diameters of the pit mud balls are 20-25 cm; and in the same pit mud layer, the volumes of the pit mud balls are equal and the two adjacent pit mud balls are arranged at an equal distance. Because a mud intercalation mode is improved, the fermentation pit disclosed by the utility model can overcome a contradiction between a large fermentation pit volume and a bad fermentation effect, a contradict