Laboratory fuming cupboard

The invention discloses a laboratory fuming cupboard, relates to the technical field of laboratory fuming cupboards, and solves the problems that long gloves are very inconvenient to mount and dismount, the replacement of the long gloves is very influenced, and the like. The laboratory fuming cupboard comprises a cupboard body, an experiment cavity is formed in the cupboard body, and explosion-proof glass is connected to an inlet of the experiment cavity in a sliding mode. According to the invention, the explosion-proof glass is lifted by lifting the convex block, so that the connecting plate clamped in the groove and the sealing block A in the groove retreat from the sealing groove A, the connecting plate can be conveniently taken out from the experiment cavity, and when a new operation glove is installed, the explosion-proof glass is lifted by lifting the convex block, and the sealing block A on the connecting plate is aligned with the sealing groove A, so that the operation glove can be conveniently taken