Drying apparatus and oven

A drying apparatus for drying a material, comprising:

• a blowing mechanism comprising a first rotational connecting portion and a second rotational connecting portion arranged oppositely and having an air-outlet channel for conveying dry gas to the material, wherein a surface of the first rotational connecting portion protrudes to form a first arc-shaped protrusion, a surface of the second rotational connecting portion protrudes to form a second arc-shaped protrusion, the first arc-shaped protrusion and the second arc-shaped protrusion are arranged oppositely, a rotation shaft is rotationally arranged on the first arc-shaped protrusion and the second arc-shaped protrusion respectively;
• and
• a guide member movably arranged in the air-outlet channel and used for dividing the air-outlet channel into a first sub-air-outlet channel and a second sub-air-outlet channel, a first air outlet of the first sub-air-outlet channel and a second air outlet of the second sub-air-outlet channel both facing the material, wherein the guide member is located between the first rotational connecting portion and the second rotational connecting portion and fixed on the rotation shaft, when rotating with the rotation shaft, the guide member changes air outputs of the first air outlet and the second air outlet.