Vacuum furnace of two sections multistage condensations of distillation

The utility model relates to a vacuum furnace of two sections multistage condensations of distillation belongs to vacuum metallurgical equipment technical field. This vacuum furnace includes the furnace body, crucible I, crucible II, control by temperature change heating member I, control by temperature change heating member II, the condensation chamber, the air duct, crucible support, backup padI, backup pad II, crucible support is fixed to be set up in the furnace body bottom, crucible I sets up on crucible support, I fixed the setting at furnace inner wall of backup pad, II fixed settingsat furnace inner wall of backup pad, the condensation chamber is fixed to be set up in I upper end of backup pad, be provided with 2~7 grades of condensate pan in the condensation chamber, crucible IIsets up I lower extreme of backup pad and fixed the setting in II upper ends of backup pad, condensation chamber and II intercommunications in the crucible, crucible I communicates through the air duct with crucible II, contro