A deodorization device has a blowing assembly 10 and an absorption assembly 20. The blowing assembly 10 has an electrothermal apparatus 19. The absorption assembly 20 is detachably mounted on the blowing assembly 10 and has an outer shell 21, an inner shell 22, and a chamber 23 that is located between the outer and inner shell. Multiple absorbing elements 24 are filled in the chamber 23. The blowing assembly 10 can blow air into the absorption assembly 20 via the third holes 221 of the inner shell 22, the air flows through the absorbing elements 24 toward the outer shell 2, and the absorption assembly 20 detached from the flowing assembly 10 can absorb the moisture and foul-smell in the air. When the absorbing elements 24 are saturated, the wind blown by the blower 12 and the electrothermal apparatus 19 can renew the absorbing elements 24.